Try using your laptop pad with a pen etc and it doesn't work, why?
Why are laptop touchpads not activated by anything other than human skin?
Touchpads operate in one of a few different ways, all of which entail sensing the capacitance of a finger, or the capacitance between sensors. This is why they will not sense the tip of a pen or other similar implement.
Reply:It sense heat i think...
Reply:This a good question, i believe ist the oil in skin.
Reply:i think they are heat sencored idk but they are very senative
Reply:that mine your touch pads have problem or damaged..or our setting in the computer..
Reply:Here's a link that might explain its working:
http://www.patentstorm.us/patents/552133...
Reply:You need something thicker. Your pen is very thin and so its not detected.
Friday, November 20, 2009
When salt and a ice cube is pressed together on human skin, why does it burn?
Is you put some salt on the top of an ice cube an press your finger against it, it'll feel like its burning.
Why is this?
When salt and a ice cube is pressed together on human skin, why does it burn?
This is a phenomenon, is commonly known as depression of freezing point, which is one of the four colligative properties. The combination of salt and ice is known as a freezing mixture, and the actual temperature of ice, which is zero degree celsius is decreased further down to -23 degree celsius. Our body has a uniform temperature of around 37 degree celsius. Thus, when such a contact is made, there is rapid exchange of heat between the skin and ice. Moreover, such sudden change in conditions also cause the damage to the epithelial layer of the skin in the finger tips, which in comparison to the normal skin is a bit more softer and sensitive, causing the burning sensation.
Reply:solidified H2O and NaCl,, hmmm.. maybe there's a reaction between them.
Reply:Zero degrees F is defined as the temperature of a mix of ice, water and salt. You are placing such a mix on you finger and it feels like 0F, as expected. Cold temperatures 'burn' because of the flow of heat (from your finger).
Reply:The salt mixed with pure water lowers it's freezing/melting temperature. This means that the ice melts despite being maintained below 0 degrees Celsius. The reason this feels colder is that this extra cold water can flow into all the micro fine crevices in your skin, giving a greater surface area of contact than with solid ice alone. This allows a greater heat flow out through your skin, causing a more rapid cooling. The increased cooling can cause greater damage to your skin cells (ice crystals can form inside the cells), this is what causes the burning sensation.
Reply:SOme scintific ****
Why is this?
When salt and a ice cube is pressed together on human skin, why does it burn?
This is a phenomenon, is commonly known as depression of freezing point, which is one of the four colligative properties. The combination of salt and ice is known as a freezing mixture, and the actual temperature of ice, which is zero degree celsius is decreased further down to -23 degree celsius. Our body has a uniform temperature of around 37 degree celsius. Thus, when such a contact is made, there is rapid exchange of heat between the skin and ice. Moreover, such sudden change in conditions also cause the damage to the epithelial layer of the skin in the finger tips, which in comparison to the normal skin is a bit more softer and sensitive, causing the burning sensation.
Reply:solidified H2O and NaCl,, hmmm.. maybe there's a reaction between them.
Reply:Zero degrees F is defined as the temperature of a mix of ice, water and salt. You are placing such a mix on you finger and it feels like 0F, as expected. Cold temperatures 'burn' because of the flow of heat (from your finger).
Reply:The salt mixed with pure water lowers it's freezing/melting temperature. This means that the ice melts despite being maintained below 0 degrees Celsius. The reason this feels colder is that this extra cold water can flow into all the micro fine crevices in your skin, giving a greater surface area of contact than with solid ice alone. This allows a greater heat flow out through your skin, causing a more rapid cooling. The increased cooling can cause greater damage to your skin cells (ice crystals can form inside the cells), this is what causes the burning sensation.
Reply:SOme scintific ****
Could next big epidemy in the world be connected with human skin?
Yes. We're talking about ozone depletion here. Skin cancer could be the most likely one to dominate among cancers.
Could next big epidemy in the world be connected with human skin?
Yeah, beware of sunshine! Take care and love your skin that you're in. Many thanks po. Report It
Reply:hmm like herpes or HPV? i guess it depends. it's possible but probably more like that some other disease like bubonic plague would resurface and reek havoc. i don't think that many people die from skin related illnesses except skin cancer. Look up Morgellon's Disease- now that's some weird skin freakiness!
Reply:Considering the skin is our bodies largest filter and helps eliminate waste products - then yah, its real reasonable. There is that one strain of staph infection that resists antibiotic treatments, and is considered epidemic potential level now.
oyster plant
Could next big epidemy in the world be connected with human skin?
Yeah, beware of sunshine! Take care and love your skin that you're in. Many thanks po. Report It
Reply:hmm like herpes or HPV? i guess it depends. it's possible but probably more like that some other disease like bubonic plague would resurface and reek havoc. i don't think that many people die from skin related illnesses except skin cancer. Look up Morgellon's Disease- now that's some weird skin freakiness!
Reply:Considering the skin is our bodies largest filter and helps eliminate waste products - then yah, its real reasonable. There is that one strain of staph infection that resists antibiotic treatments, and is considered epidemic potential level now.
oyster plant
What percent of the dust in your home is dead human skin?
Actually dust itself is a dead thing isn't it. I think 100% of the dust in my home is dead.
What percent of the dust in your home is dead human skin?
70%
Reply:most of it.
and if you have pets the rest is them heeeheee!!!
What percent of the dust in your home is dead human skin?
70%
Reply:most of it.
and if you have pets the rest is them heeeheee!!!
What are the features of a Diatom cell and a Human skin cell?
Diatoms are probably the most abundant aquatic eukaryotes in number of individuals and species. They live singly or in simple filaments or colonies, they occur in either type of aquatic environment. They reproduce sexually and are basically non motile. Most unicellular algae are haploid but diatoms are diploid. They contain chlorophyll a and c and the accessory pigment fucoxanthin, a carotenoid that give them a yellow-brown color. They store food as oil and the polysaccharide chrysolaminarin. The most distinctive feature of diatoms is the intricately patterned cell wall. The two piece cell wall is impregnated with silica. Silica does not decay so large amounts of glasslike material is deposited on the ocean floor as the diatoms die.
Human cells: No cells wall, no chlorophyll, usually does not store food except for certain cells (adipose cells for one)
Not a single organism but they need other cells to survive.
Human cells: No cells wall, no chlorophyll, usually does not store food except for certain cells (adipose cells for one)
Not a single organism but they need other cells to survive.
Various combinations of WHAT at each of several genes control human skin color?
IT SHOULD ONLY BE A ONE WORD ANSWER! I need to pass my final so i need to finish this study guide so please please help me!
Various combinations of WHAT at each of several genes control human skin color?
Alleles
(Alleles are different forms of the genes for a trait.)
Reply:Melinin.
Reply:I agree - alleles.
Reply:genes controlling melanin discharge in skin cells
Various combinations of WHAT at each of several genes control human skin color?
Alleles
(Alleles are different forms of the genes for a trait.)
Reply:Melinin.
Reply:I agree - alleles.
Reply:genes controlling melanin discharge in skin cells
What is the average diameter (probably in micrometers) of a human tonsil cell? a human skin cell?
At birth the palatine tonsils are approximately 5 mm in anteroposterior diameter and 3.5 mm in vertical diameter, and weigh about .75 gms.
fig
fig
Is it true dog’s age the appearance of human skin or add 10 years to how you look?
I read an article about this woman who had a pug and didn't want to look after it because she said it made her appearance age by 10 years.
Is it true dog’s age the appearance of human skin or add 10 years to how you look?
I have been a dog breeder since 1968. People can never believe that I am as old as I am....I have no wrinkles yet. My hair is still the same color as always.
Reply:That's dumb -- if anything having a dog should make you look younger because of all the exercise you get trying to keep up with them.
Reply:LOL - just goes to show how many fruit cakes are really out there! No a dog will not age the appearance a humans skin, or add 10 years. If any thing a dog will improve a persons quality of life - therefore making them look YOUNGER.
Reply:Well it is said that owners and dogs do start to look similar after a while, but dogs don't age you. In fact there have been several studies done that prove having a pet helps you release tension and encourages you to exercise (walking the dog), essentially making you healthier and possibly making you look and feel younger.
Reply:no
Reply:No
Is it true dog’s age the appearance of human skin or add 10 years to how you look?
I have been a dog breeder since 1968. People can never believe that I am as old as I am....I have no wrinkles yet. My hair is still the same color as always.
Reply:That's dumb -- if anything having a dog should make you look younger because of all the exercise you get trying to keep up with them.
Reply:LOL - just goes to show how many fruit cakes are really out there! No a dog will not age the appearance a humans skin, or add 10 years. If any thing a dog will improve a persons quality of life - therefore making them look YOUNGER.
Reply:Well it is said that owners and dogs do start to look similar after a while, but dogs don't age you. In fact there have been several studies done that prove having a pet helps you release tension and encourages you to exercise (walking the dog), essentially making you healthier and possibly making you look and feel younger.
Reply:no
Reply:No
Could anybody tell me a biology issue on the human skin pleaseeeeeeee to do my report on...?
Try eczema or psoriasis plenty of issues with both and they are both skin related.
Could anybody tell me a biology issue on the human skin pleaseeeeeeee to do my report on...?
Pleasy? Shouldn't it be pleeese?
Reply:Acne would be good, too -- there are a lot of myths about that like eating chocolate causes it.
Reply:Aloha from Down Unda!
Try 'Skin Cancer'
[caused from too much sun exposure...maybe have a lead on the story...]
Best wishes~
Reply:acne
dry skin
psoriasis
eczema
sun spots
birth marks
freckles
Could anybody tell me a biology issue on the human skin pleaseeeeeeee to do my report on...?
Pleasy? Shouldn't it be pleeese?
Reply:Acne would be good, too -- there are a lot of myths about that like eating chocolate causes it.
Reply:Aloha from Down Unda!
Try 'Skin Cancer'
[caused from too much sun exposure...maybe have a lead on the story...]
Best wishes~
Reply:acne
dry skin
psoriasis
eczema
sun spots
birth marks
freckles
Would you expect to find more mitochondria in a human skin cell or muscle cell? Why?
muscle cell
mitochondria provide energy in the form of ATP to perform work. ATP = adenosine 5'-triphosphate
muscles do a lot of work, and need a lot of ATP.
by comparison, skin cells just lay around and don't move, so need little energy or ATP made by mitochondria
for more information, see:
http://www.purchon.com/biology/mitochond...
Would you expect to find more mitochondria in a human skin cell or muscle cell? Why?
in the muscle cell....because the muscle needs more energy and thats what the mitocondria is for
Reply:in the muscles because the muscles need more energy than the skin...
Reply:Muscle cells. Definitely. This is because muscle cells require more mitochondria to generate sufficient energy in the form of ATP for our muscle contractions and for respiration.
Reply:mitochodria the sole function is respiration as muscle cells are involved in doing work more mitochondria is found there where food is burnt
mitochondria provide energy in the form of ATP to perform work. ATP = adenosine 5'-triphosphate
muscles do a lot of work, and need a lot of ATP.
by comparison, skin cells just lay around and don't move, so need little energy or ATP made by mitochondria
for more information, see:
http://www.purchon.com/biology/mitochond...
Would you expect to find more mitochondria in a human skin cell or muscle cell? Why?
in the muscle cell....because the muscle needs more energy and thats what the mitocondria is for
Reply:in the muscles because the muscles need more energy than the skin...
Reply:Muscle cells. Definitely. This is because muscle cells require more mitochondria to generate sufficient energy in the form of ATP for our muscle contractions and for respiration.
Reply:mitochodria the sole function is respiration as muscle cells are involved in doing work more mitochondria is found there where food is burnt
If ordinary house dust is almost entirely made of human skin why do abandoned houses have so much dust?
Just thought it was an unusual thing... I would expect that a house that's been empty for 10+ years wouldn't have any dust assuming there wasn't any missing windows that would allow road dirt from blowing in.
If ordinary house dust is almost entirely made of human skin why do abandoned houses have so much dust?
General crud in the air
Reply:It has more dust because it never gets dusted! Plus, old things may weather and decay creating more dust.
Reply:Touche! That is an excellent question. I am not entirely sure of the answer, but I'm guessing maybe due to...damn, you got me! Idk. Imma give this a star. I'd like to see the answers you'll get.
Reply:Rob, it's not uncommon for older houses to have a dark history of random hobo eating.
Yes, sadly, what you have encountered may very well be the scattered, dusty remains of some homeless vagabond. Each year, experts estimate that hundreds of hobos are eaten by carnivorous houses of that time period.
While the real cause of this flesh feeding frenzy has yet to be determined, some construction company leaders believe that the adhesive used in early 20th century residential construction was manufactured at the Siddhartha Colonial factory in eastern Arizona -- the site of an ancient Indian burial ground. Legend states that desecration of that land meant that the spirits of the departed warriors would come back to exact vengeance. A vengeance, it is believed, that takes place in the form of hungry houses.
Bud McSweeny, local real estate specialist in New Haven, CT., can attest to this increidible, edible tragedy:
"I was only 16 when I first saw it. The house ate both my kid sister, Patrice, as well as that funny Collins boy -- the one with the real bad stuttering problem. Poor Bobby simply stood in the doorway, frozen with fear, his lips barely able to stammer out: 'p-p-p-p-p-lease, d-dear G-G-Godddd."
So, there you have it. Eye witness account of an actual house devouring two humans.
While it is yet to be understood why these old houses actually eat random people, from hobos to little sisters, one thing remains perfectly clear: these vacant homes are still open for business.
Reply:good question, I dont know of any specific answers, so I can only hazard a guess. there are microfibers floating around even in the cleanest of airs.... but im just throwing my 2 cents in :) ... if only we can ask a dust molecule....
yew
If ordinary house dust is almost entirely made of human skin why do abandoned houses have so much dust?
General crud in the air
Reply:It has more dust because it never gets dusted! Plus, old things may weather and decay creating more dust.
Reply:Touche! That is an excellent question. I am not entirely sure of the answer, but I'm guessing maybe due to...damn, you got me! Idk. Imma give this a star. I'd like to see the answers you'll get.
Reply:Rob, it's not uncommon for older houses to have a dark history of random hobo eating.
Yes, sadly, what you have encountered may very well be the scattered, dusty remains of some homeless vagabond. Each year, experts estimate that hundreds of hobos are eaten by carnivorous houses of that time period.
While the real cause of this flesh feeding frenzy has yet to be determined, some construction company leaders believe that the adhesive used in early 20th century residential construction was manufactured at the Siddhartha Colonial factory in eastern Arizona -- the site of an ancient Indian burial ground. Legend states that desecration of that land meant that the spirits of the departed warriors would come back to exact vengeance. A vengeance, it is believed, that takes place in the form of hungry houses.
Bud McSweeny, local real estate specialist in New Haven, CT., can attest to this increidible, edible tragedy:
"I was only 16 when I first saw it. The house ate both my kid sister, Patrice, as well as that funny Collins boy -- the one with the real bad stuttering problem. Poor Bobby simply stood in the doorway, frozen with fear, his lips barely able to stammer out: 'p-p-p-p-p-lease, d-dear G-G-Godddd."
So, there you have it. Eye witness account of an actual house devouring two humans.
While it is yet to be understood why these old houses actually eat random people, from hobos to little sisters, one thing remains perfectly clear: these vacant homes are still open for business.
Reply:good question, I dont know of any specific answers, so I can only hazard a guess. there are microfibers floating around even in the cleanest of airs.... but im just throwing my 2 cents in :) ... if only we can ask a dust molecule....
yew
How is mitosis in onions different from mitosis in human skin?
Substances that trigger them and in the mode of cytokinesis.
How is mitosis in onions different from mitosis in human skin?
Evolutionary speaking, there should be "no" difference. The biological process of cell division known as mitosis is the same in all complex living things.
Mitotic cell division wise, the only different between cell division in an onion cell and that of a human somatic cell, is just the number of chromosomes involved.
How is mitosis in onions different from mitosis in human skin?
Evolutionary speaking, there should be "no" difference. The biological process of cell division known as mitosis is the same in all complex living things.
Mitotic cell division wise, the only different between cell division in an onion cell and that of a human somatic cell, is just the number of chromosomes involved.
Where can i find the best tools to peel human skin for my little sewing project.?
At a cutlery shop. It's not the tool it's the skill level involved. Practice on yourself a lot first. Like around the neck area. FOOL!
Where can i find the best tools to peel human skin for my little sewing project.?
I don't know Clairese!!!!
Reply:Holy ****, youre pulling some jeepers creepers or chainsaw massacre stunts arent you?
hehe.. morbid.
I love it.
xx
Reply:take it easy ....you've seen silence of the lambs too many times
Reply:Are you a member of the SS?
Reply:craft store, thats where i got mine...lol
Reply:well if u know anyone who has psorasis, that will help.
Reply:the local cop shop sometimes sells that stuff off cheaply but be discrete you don't want everyone around cleaning them out of tools on you. talk to the detectives they are in the know wink wink
Reply:Use an air compressor and a needle for blowing up sports equipment. Stick it between the skin and fat and presto, it seperates the skin, making the job so much easier. And technically the process is called skinning, you peel apples, you skin people. You can also do it with turkey's at thanksgiving to make an extra crispy skin, or to help skin out a deer.
Reply:in hell! life isn't a silence of the lambs movie!
Reply:Go to the nearest police department and ask any officer there. I'm sure they will be happy to help you.
Reply:you are creepy and sick honey...get a new hobby
Where can i find the best tools to peel human skin for my little sewing project.?
I don't know Clairese!!!!
Reply:Holy ****, youre pulling some jeepers creepers or chainsaw massacre stunts arent you?
hehe.. morbid.
I love it.
xx
Reply:take it easy ....you've seen silence of the lambs too many times
Reply:Are you a member of the SS?
Reply:craft store, thats where i got mine...lol
Reply:well if u know anyone who has psorasis, that will help.
Reply:the local cop shop sometimes sells that stuff off cheaply but be discrete you don't want everyone around cleaning them out of tools on you. talk to the detectives they are in the know wink wink
Reply:Use an air compressor and a needle for blowing up sports equipment. Stick it between the skin and fat and presto, it seperates the skin, making the job so much easier. And technically the process is called skinning, you peel apples, you skin people. You can also do it with turkey's at thanksgiving to make an extra crispy skin, or to help skin out a deer.
Reply:in hell! life isn't a silence of the lambs movie!
Reply:Go to the nearest police department and ask any officer there. I'm sure they will be happy to help you.
Reply:you are creepy and sick honey...get a new hobby
What kind of paint is used to airbrush on human skin - aka - body painting?
I want to use my airbrush to body paint and i need to know what kind of paint is used and where I can buy it. I live in York, Pa.
What kind of paint is used to airbrush on human skin - aka - body painting?
Do not use airbrushes on skin. Even at low pressures the risk of actually injecting pigment is far too high.
Puppy down there should read up on his subject and learn a bit about what he's doing before one of his models sues him or worse... he fills someone full of toxins {Finds out that he's already caused someone irreparable damage}.
Reply:Using an airbrush for face and body painting is a safe, common and well-respected practice - provided that you use a suitable cosmetic product that has been formulated for use on the skin. Report It
Reply:Try varnish
Reply:This is just not a great idea. Your skin needs to breathe.
There was some poor girl here one night who was itching and having trouble breathing, after she'd painted every exposed inch of her skin, including her arms and legs, with acrylic paint for some school event.
Turned out she was allergic.
Reply:What a load of bullsh!t some of the other answers. Urban legends. You can use an airbrush on skin just as well as a brush. It is safe and will not penetrate nor suffocate the skin.
You best use special body paint diluted with water (Must be water based paint of course) For smaller area's you can use common artists acrylics. Make sure your subject is not breathing when you paint the face or near it. Breathing in isn't all that dangerous but is will make you cough and can induce an asthma attack if they are susceptible.
For best effect have the model use a waterbased cream it will make for great surface and will make clean up a lot easier.
What kind of paint is used to airbrush on human skin - aka - body painting?
Do not use airbrushes on skin. Even at low pressures the risk of actually injecting pigment is far too high.
Puppy down there should read up on his subject and learn a bit about what he's doing before one of his models sues him or worse... he fills someone full of toxins {Finds out that he's already caused someone irreparable damage}.
Reply:Using an airbrush for face and body painting is a safe, common and well-respected practice - provided that you use a suitable cosmetic product that has been formulated for use on the skin. Report It
Reply:Try varnish
Reply:This is just not a great idea. Your skin needs to breathe.
There was some poor girl here one night who was itching and having trouble breathing, after she'd painted every exposed inch of her skin, including her arms and legs, with acrylic paint for some school event.
Turned out she was allergic.
Reply:What a load of bullsh!t some of the other answers. Urban legends. You can use an airbrush on skin just as well as a brush. It is safe and will not penetrate nor suffocate the skin.
You best use special body paint diluted with water (Must be water based paint of course) For smaller area's you can use common artists acrylics. Make sure your subject is not breathing when you paint the face or near it. Breathing in isn't all that dangerous but is will make you cough and can induce an asthma attack if they are susceptible.
For best effect have the model use a waterbased cream it will make for great surface and will make clean up a lot easier.
Why do some things such as a snailshell (or human skin!) burn but not catch fire while others sustain fire?
WATER, and skin does catch fire, if the heat applied is sufficient enough, it will ignite the fat layer beneath, wheras snailshel is made from calcium carbonate plus, and will only char and blacken.
regards LF
Why do some things such as a snailshell (or human skin!) burn but not catch fire while others sustain fire?
The quick answer is the the ratio of water to flammable material in the sample.
Reply:It depends on the availability of fuel for the fire. Snailshells don't have a fuel source which is quickly available for fire. Skin can burn, but it doesn't have much that will burn that quickly (normally carbon -based chemicals of certain types), so it doesn't catch alight. Also, skin has a lot of water in it, so it's harder to burn.
Reply:Good question. I think it depends how combustible the material being scorched or burnt is.
Reply:It depends on whether the combustion is sufficiently exothermic, that is produces more heat than it absorbs. A chemical reaction (like combustion) is self sustaining if it releases enough energy to keep itself going. If not, it dies down unless you keep putting energy into it.
pine
regards LF
Why do some things such as a snailshell (or human skin!) burn but not catch fire while others sustain fire?
The quick answer is the the ratio of water to flammable material in the sample.
Reply:It depends on the availability of fuel for the fire. Snailshells don't have a fuel source which is quickly available for fire. Skin can burn, but it doesn't have much that will burn that quickly (normally carbon -based chemicals of certain types), so it doesn't catch alight. Also, skin has a lot of water in it, so it's harder to burn.
Reply:Good question. I think it depends how combustible the material being scorched or burnt is.
Reply:It depends on whether the combustion is sufficiently exothermic, that is produces more heat than it absorbs. A chemical reaction (like combustion) is self sustaining if it releases enough energy to keep itself going. If not, it dies down unless you keep putting energy into it.
pine
Any scientific explaination for geographic distribution of various human skin colours across the world?
Certainly. Skin tones of humans are related to the climate to which their ancestors adapted, many thousands of years ago. In areas of heavy, dircect UV rays from the sun, i.e., the savannahs of Africa, Southern India, the darkest pigmentation (melanin, a skin protein) is found. Lighter pigmentation is found in more northerly climes,...as in Europe. Many Asian peoples are darker than Europeans, though they are just as far north. But their ancestors were adapted to vast open steppes,...less UV rays than Africa, but more than Europe. Europeans adapted to a vast, northern, forested environment, where sunlight was much less. Sunlight provides an important ingredient to human growth and health,..Vitamin D, which is produced in the skin under the influence of sunlight. Where sunlight is less, lighter skin is an advantage. It allows for more absorption of vitamin D. You must remember, though, that these adaptations occurred when humans had much less control over their environments than today. And there has been much migration since the earliest humans appeared. So, the geographical location and skin colour of modern peoples may bear no relation to the location of their ancient ancestors. With the advances in human skills, diet, etc,...there is little need or likelihood for further adaptations. People of European ancestry are unlikely to become darker because they live in South Africa or Australia. Africans or Indians are unlikely to become lighter skinned because they live in Europe or North America.
Any scientific explaination for geographic distribution of various human skin colours across the world?
There are two basic reasons. Your body need melanin to protect against too much UV radiation. There are enzymes that can repair some damage but will be overwhelmed if the dosage is too high and the skin will be burned. You need enough to prevent burning. The other consideration is the proper amount of ergosterol being converted to vitamin D. Light skin is an adaptation that allows a greater amount of UV light to penetrate and increases the amount of vitamin D which is vital for calcium absorption. In higher latitudes where the amount of UV is much less, lighter skinned individuals are selected over darker ones because they can produce enough vitamin D.
Reply:I believe it is because of adaptation that we have different skin colors. In temperate countries where the sun's rays are not so intense, human's skin will naturally be fairer as opposed to that of human's skins in tropical countries which is darker because of melanin which protects us from ultraviolet rays. If you are asking why there are dark skinned indivbiduals in the temperate countries and vice versa, well it can be explained by interracial marriages.
Reply:The answers are good BUT the Aborigine and the guys in New Guina, the Amazon indians, are in tropical areas. I wonder also.
Reply:evolutionary-- based on exposure to sunlight.
Reply:The answers that most of the folks have, about skin color being related to the amount of sunlight in that part of the world is the "traditional" interpretation.
However, the famous biologist, Jared Diamond has proposed that it's sexual selection. In other words, in different areas, certain groups have specific beauty ideals that are different from other groups.
He points out that when you look in different parts of the world (not just the Euro/African skin color distribution) you can find lots of light skinned/light haired people (like the Melanesians) at the equator, while you can go to places like Northern China (very little sun exposure) and find some very dark people.
No one has designed any experiments or models to test either of those hypotheses, but Jared Diamond has a great way of looking at things outside of the traditional interpretations.
Any scientific explaination for geographic distribution of various human skin colours across the world?
There are two basic reasons. Your body need melanin to protect against too much UV radiation. There are enzymes that can repair some damage but will be overwhelmed if the dosage is too high and the skin will be burned. You need enough to prevent burning. The other consideration is the proper amount of ergosterol being converted to vitamin D. Light skin is an adaptation that allows a greater amount of UV light to penetrate and increases the amount of vitamin D which is vital for calcium absorption. In higher latitudes where the amount of UV is much less, lighter skinned individuals are selected over darker ones because they can produce enough vitamin D.
Reply:I believe it is because of adaptation that we have different skin colors. In temperate countries where the sun's rays are not so intense, human's skin will naturally be fairer as opposed to that of human's skins in tropical countries which is darker because of melanin which protects us from ultraviolet rays. If you are asking why there are dark skinned indivbiduals in the temperate countries and vice versa, well it can be explained by interracial marriages.
Reply:The answers are good BUT the Aborigine and the guys in New Guina, the Amazon indians, are in tropical areas. I wonder also.
Reply:evolutionary-- based on exposure to sunlight.
Reply:The answers that most of the folks have, about skin color being related to the amount of sunlight in that part of the world is the "traditional" interpretation.
However, the famous biologist, Jared Diamond has proposed that it's sexual selection. In other words, in different areas, certain groups have specific beauty ideals that are different from other groups.
He points out that when you look in different parts of the world (not just the Euro/African skin color distribution) you can find lots of light skinned/light haired people (like the Melanesians) at the equator, while you can go to places like Northern China (very little sun exposure) and find some very dark people.
No one has designed any experiments or models to test either of those hypotheses, but Jared Diamond has a great way of looking at things outside of the traditional interpretations.
How do you remove oil paint safely from human skin of a 4 year old boy who got into his sister's paint?
I would use gas to remove it from adults but I dont reccommend doing that for a little baby , the best thing to do is to contact a health center .
How do you remove oil paint safely from human skin of a 4 year old boy who got into his sister's paint?
Before I did anything Id call the poison control so you wont make the problem worse. good luck Arent kids fun?
Reply:if it is not enamel paint you can use common cooking dripping which had hardened.just rub it into the paint and it will soften it enough to get it off
How do you remove oil paint safely from human skin of a 4 year old boy who got into his sister's paint?
Before I did anything Id call the poison control so you wont make the problem worse. good luck Arent kids fun?
Reply:if it is not enamel paint you can use common cooking dripping which had hardened.just rub it into the paint and it will soften it enough to get it off
Why are many bacteria unable to grow on human skin?
Hmm, tell that to my leg that got a horrible infecction and almost ate my leg! It started on my skin...
Why are many bacteria unable to grow on human skin?
acid mantle makes skin an inhospitable environment for many bacteria
Why are many bacteria unable to grow on human skin?
acid mantle makes skin an inhospitable environment for many bacteria
Why are many bacteria unable to grow on human skin?
Hmm, tell that to my leg that got a horrible infecction and almost ate my leg! It started on my skin...
Why are many bacteria unable to grow on human skin?
acid mantle makes skin an inhospitable environment for many bacteria
sago
Why are many bacteria unable to grow on human skin?
acid mantle makes skin an inhospitable environment for many bacteria
sago
How do you remove oil paint safely from human skin of a 4 year old boy who got into his sister's paint?
I would use gas to remove it from adults but I dont reccommend doing that for a little baby , the best thing to do is to contact a health center .
How do you remove oil paint safely from human skin of a 4 year old boy who got into his sister's paint?
Before I did anything Id call the poison control so you wont make the problem worse. good luck Arent kids fun?
Reply:if it is not enamel paint you can use common cooking dripping which had hardened.just rub it into the paint and it will soften it enough to get it off
How do you remove oil paint safely from human skin of a 4 year old boy who got into his sister's paint?
Before I did anything Id call the poison control so you wont make the problem worse. good luck Arent kids fun?
Reply:if it is not enamel paint you can use common cooking dripping which had hardened.just rub it into the paint and it will soften it enough to get it off
What is 'a small congenital spot on the human skin, usually dark-coloured' I need a synonym of the description
it's part of a crossword-puzzle at school I can't find the answer. I still need two other words.
This word has 6 letters, the 3rd is an N and it ends with a D
What is 'a small congenital spot on the human skin, usually dark-coloured' I need a synonym of the description
I tried looking it up. The definition brought up mole, so I looked it up in the thesaurus. None of the synonyms match so maybe the letters are incorrect. Here is the link in case you discover that you made an error.
Reply:Are you sure on the letters?
possibly CANCER if the D is questionable
This word has 6 letters, the 3rd is an N and it ends with a D
What is 'a small congenital spot on the human skin, usually dark-coloured' I need a synonym of the description
I tried looking it up. The definition brought up mole, so I looked it up in the thesaurus. None of the synonyms match so maybe the letters are incorrect. Here is the link in case you discover that you made an error.
Reply:Are you sure on the letters?
possibly CANCER if the D is questionable
Would it be unethical to use and sew human skin for fashion?
yes, that's very gross and weird. Human skin? We might as well wear no clothes, if we are gonna wear skin. That's very unorthadox.
Would it be unethical to use and sew human skin for fashion?
That would be a little gross.
Reply:yes. and its very disguisting. i would NOT wear that fashion design. it starts to smell too.
Reply:YES
Reply:You know the answer to that...
Reply:yes. and it's also unethical to sew animals' skin for fashion. wtf? fur? killing poor, innocent animals just so humans can wear their carcasses? that's gotta be just as unethical
Reply:yah..... (pause of weirdness) lol thats a little strange!
Reply:erm. could the answer possibly be HECK YES?
The only way I could remotely feel okay about wearing (or carrying) something made from human skin would be if they consented... like an organ donor. But o.O Could you imagine carrying around someone's SKIN? wearing it on your feet?
I think that even if it was a fad that was started, it'd never make it past the runway, because people would be horrified and their morals would kick in.
Reply::( ew..i doubt anyone would want to wear thhat. sorry
Reply:You just wanted alot of answers didnt you?
O.o
Reply:yes and disgusting!
Reply:weird.
nasty.
gross.
eww.
Reply:YES! That is really gross and weird. Disgusting!
Reply:but...what if you used the carcasses for ANIMALS to wear..then we could be even and we could wear the other.without the other one getting all "bent out of shape"!
Reply:yeah. what kind of a sick person does that. one man who did that was ed gein the man who inspired the chainsaw massacre. and its not exactly fashionable either
Reply:Have you ever heard of Adolf Hitler and the Nazi Party? They made lampshades and shoes out of human skin; that of Jews, political prisoners, homosexuals, and the mentally ill/deficient. Seig heil, you of questionable moral judgement!
Reply:Yes! It would definietely be unethical as the product you produced would only last three to four days. It would have to be kept in a freezer of somesort to maintain that time period.
However, there is SYNTHETIC FAKE HUMAN SKIN.
Nope, these are not real human skin but synthetic fiber to look like human skin. Definitely a worth buy for those who wants to show off unique products to their friends.
SkinBag is a symthetic human skin with a creased appearance giving an organic aspect to the range of clothing and accessories.
Theses pieces play on the ambivalence of the archaic %26amp; instinctive body, and the artificial %26amp; optimised body.
With its alternative tattos and piercings, SkinBag has many identifying artificial additions which lets the individual show his personality off to advantage. SkinBag is a relative tool, an particular interface between us and others.
Organic objects seamless, in synthetic human skin, Limited series, or on demand and made to measure
Skin-related Bags, Accessories and OverGarnments, a successful alchemy between the captivating and the repulsive for a sensuel fashion without complacency.
SEE http://www.skinbag.net/
A company called SkinBag has developed synthetic human skin with a creased appearance giving an organic aspect to the range of clothing and accessories.
This synthetic latex material imitates human skin so well that it has creases, wrinkles, spots, moles, rough patches and other blemishes.
SkinBag accessories are available in different human skin colours representing different ethnic groups like White, Red, Black, Dark Skin.
Reply:umm yea that would be pretty gross if u ask me
i wouldn't wear someone else's skin! yuck!!!
and smelly
Would it be unethical to use and sew human skin for fashion?
That would be a little gross.
Reply:yes. and its very disguisting. i would NOT wear that fashion design. it starts to smell too.
Reply:YES
Reply:You know the answer to that...
Reply:yes. and it's also unethical to sew animals' skin for fashion. wtf? fur? killing poor, innocent animals just so humans can wear their carcasses? that's gotta be just as unethical
Reply:yah..... (pause of weirdness) lol thats a little strange!
Reply:erm. could the answer possibly be HECK YES?
The only way I could remotely feel okay about wearing (or carrying) something made from human skin would be if they consented... like an organ donor. But o.O Could you imagine carrying around someone's SKIN? wearing it on your feet?
I think that even if it was a fad that was started, it'd never make it past the runway, because people would be horrified and their morals would kick in.
Reply::( ew..i doubt anyone would want to wear thhat. sorry
Reply:You just wanted alot of answers didnt you?
O.o
Reply:yes and disgusting!
Reply:weird.
nasty.
gross.
eww.
Reply:YES! That is really gross and weird. Disgusting!
Reply:but...what if you used the carcasses for ANIMALS to wear..then we could be even and we could wear the other.without the other one getting all "bent out of shape"!
Reply:yeah. what kind of a sick person does that. one man who did that was ed gein the man who inspired the chainsaw massacre. and its not exactly fashionable either
Reply:Have you ever heard of Adolf Hitler and the Nazi Party? They made lampshades and shoes out of human skin; that of Jews, political prisoners, homosexuals, and the mentally ill/deficient. Seig heil, you of questionable moral judgement!
Reply:Yes! It would definietely be unethical as the product you produced would only last three to four days. It would have to be kept in a freezer of somesort to maintain that time period.
However, there is SYNTHETIC FAKE HUMAN SKIN.
Nope, these are not real human skin but synthetic fiber to look like human skin. Definitely a worth buy for those who wants to show off unique products to their friends.
SkinBag is a symthetic human skin with a creased appearance giving an organic aspect to the range of clothing and accessories.
Theses pieces play on the ambivalence of the archaic %26amp; instinctive body, and the artificial %26amp; optimised body.
With its alternative tattos and piercings, SkinBag has many identifying artificial additions which lets the individual show his personality off to advantage. SkinBag is a relative tool, an particular interface between us and others.
Organic objects seamless, in synthetic human skin, Limited series, or on demand and made to measure
Skin-related Bags, Accessories and OverGarnments, a successful alchemy between the captivating and the repulsive for a sensuel fashion without complacency.
SEE http://www.skinbag.net/
A company called SkinBag has developed synthetic human skin with a creased appearance giving an organic aspect to the range of clothing and accessories.
This synthetic latex material imitates human skin so well that it has creases, wrinkles, spots, moles, rough patches and other blemishes.
SkinBag accessories are available in different human skin colours representing different ethnic groups like White, Red, Black, Dark Skin.
Reply:umm yea that would be pretty gross if u ask me
i wouldn't wear someone else's skin! yuck!!!
and smelly
Is Freon Toxic if it gets on human skin?
No.
But it's still no good for it to be on your skin. Wash it off.
Is Freon Toxic if it gets on human skin?
No. Wash it off quickly, however.
Reply:Although not toxic, it causes irritation - flush skin with plenty of water for 15 minutes. Get medical attention if irritation is persists
crocus
But it's still no good for it to be on your skin. Wash it off.
Is Freon Toxic if it gets on human skin?
No. Wash it off quickly, however.
Reply:Although not toxic, it causes irritation - flush skin with plenty of water for 15 minutes. Get medical attention if irritation is persists
crocus
It What ways does sunlight affect the human skin?
The effect of sunlight is more dangerous than most people think. Skin cancer is an obvious disease that is a direct affect of the sun
This has led to extensive efforts to raise awareness of the risks involved in overexposure to the sun and of the behavioral changes needed to avoid it. Melanoma is one type of cancer that can strike people of any age, race, gender, and economic status
sunburn develops when the amount of UV exposure is greater than what can be protected against by the skin's melanin. The lighter your skin, the less melanin it has to absorb UV and protect itself. And all skin, no matter what color, responds to continued sun exposure by thickening and hardening, resulting in leathery skin and wrinkles later in life.
Unprotected sun exposure is even more dangerous if you have moles on your skin, very fair skin and hair, or a family history of skin cancer, including melanoma. You should be especially careful about sun protection if you have one or more of these high-risk characteristics.
Not all sunlight is "equal" in UV concentration. The intensity of the sun's rays depends upon the time of year, as well as the altitude and latitude of your location.
UV rays are strongest during summer. Remember that the timing of this season varies by location; if you travel to a foreign country during its summer season, you'll need to pack the strongest sun protection you can find
It What ways does sunlight affect the human skin?
it can give you sun burn. if you are not careful you can get skin cancer from it.
be safe!
Reply:Many ways- UVA rays= tanning, possible skin damage over time
UVB rays=causes sunburn, tanning, wrinkling, aging of the skin and skin cancer From personal experience, sun clears up skin too.
Reply:Please see the web pages for more details on U-V rays and Sun tanning.
This has led to extensive efforts to raise awareness of the risks involved in overexposure to the sun and of the behavioral changes needed to avoid it. Melanoma is one type of cancer that can strike people of any age, race, gender, and economic status
sunburn develops when the amount of UV exposure is greater than what can be protected against by the skin's melanin. The lighter your skin, the less melanin it has to absorb UV and protect itself. And all skin, no matter what color, responds to continued sun exposure by thickening and hardening, resulting in leathery skin and wrinkles later in life.
Unprotected sun exposure is even more dangerous if you have moles on your skin, very fair skin and hair, or a family history of skin cancer, including melanoma. You should be especially careful about sun protection if you have one or more of these high-risk characteristics.
Not all sunlight is "equal" in UV concentration. The intensity of the sun's rays depends upon the time of year, as well as the altitude and latitude of your location.
UV rays are strongest during summer. Remember that the timing of this season varies by location; if you travel to a foreign country during its summer season, you'll need to pack the strongest sun protection you can find
It What ways does sunlight affect the human skin?
it can give you sun burn. if you are not careful you can get skin cancer from it.
be safe!
Reply:Many ways- UVA rays= tanning, possible skin damage over time
UVB rays=causes sunburn, tanning, wrinkling, aging of the skin and skin cancer From personal experience, sun clears up skin too.
Reply:Please see the web pages for more details on U-V rays and Sun tanning.
Does common household dust really contain 80% human skin?
I once heard this before and was shocked but never knew what to think of it, please does anyone have any insight?
Does common household dust really contain 80% human skin?
I read a lot about dust on the www because my son's allergic to dust mites. I've heard that human skin composes a high % of dust, but I can't track down the source of this. It sounds gross, but that's how dust mites live-- they eat our dead skin cells. A vacuum cleaner salesman once told me that dust is "DEAD THINGS." He said this in a very creepy tone that made me run out of the store as fast as I could!
oh, here's a website about a guy who likes to look at dust under the microscope... and he stains the dust so he can tell the difference between organic and non-living material. fascinating stuff. who would have known dust could be so complex!
Reply:FALSE!!!
Reply:yes
Reply:yes thats true however i heard that it was 90% of the dust
Reply:yes because your skin comes off as you move and most people are inside a lot.
Reply:Germs, and non organic matter
Reply:disturbing isn't it...and i think there's an even greater percentage under beds
Reply:Yeah, that's true but, I thought it was more than 80%, than another 5 or, 6 % is meteor dust.
Reply:r u joking. This is not true.
Reply:According to the sources I checked, about 80% of household dust is dead human
skin.
Here are a few websites that discuss this:
Dust Mite Basic Primer
Dust and Dust Mites
House Dust Mite NuFact
Reply:yes it does.
nasty huh
Reply:Yes it does.
Does common household dust really contain 80% human skin?
I read a lot about dust on the www because my son's allergic to dust mites. I've heard that human skin composes a high % of dust, but I can't track down the source of this. It sounds gross, but that's how dust mites live-- they eat our dead skin cells. A vacuum cleaner salesman once told me that dust is "DEAD THINGS." He said this in a very creepy tone that made me run out of the store as fast as I could!
oh, here's a website about a guy who likes to look at dust under the microscope... and he stains the dust so he can tell the difference between organic and non-living material. fascinating stuff. who would have known dust could be so complex!
Reply:FALSE!!!
Reply:yes
Reply:yes thats true however i heard that it was 90% of the dust
Reply:yes because your skin comes off as you move and most people are inside a lot.
Reply:Germs, and non organic matter
Reply:disturbing isn't it...and i think there's an even greater percentage under beds
Reply:Yeah, that's true but, I thought it was more than 80%, than another 5 or, 6 % is meteor dust.
Reply:r u joking. This is not true.
Reply:According to the sources I checked, about 80% of household dust is dead human
skin.
Here are a few websites that discuss this:
Dust Mite Basic Primer
Dust and Dust Mites
House Dust Mite NuFact
Reply:yes it does.
nasty huh
Reply:Yes it does.
How long does gunpower residue last on human skin?
Trace residue from gunpowder can be found even after thoughly washing your hands or other parts of your body. When firing a gun the resiude in not only depositied on hands but over a large area. The length of time in which the residue can be detected is variable, depending on many factors and the testing method used. Providing details of residue detection would not be a good idea, so I'll leave it a that.
How long does gunpower residue last on human skin?
Until it is thoroughly cleaned off.
Reply:Yes, until its washed off.
Reply:Well last time I tried to cover up a murder it was 2 days. Good luck hiding the body.
Reply:I like your sense of humor - hope you get picked for best answer. If you're not kidding...well, I still like your answer. And to the person asking the question, there's an old saying that says when you commit a murder, you make at least 25 mistakes. If you can think of 18 of them, you're a genius. Just a thought...
How long does gunpower residue last on human skin?
Until it is thoroughly cleaned off.
Reply:Yes, until its washed off.
Reply:Well last time I tried to cover up a murder it was 2 days. Good luck hiding the body.
Reply:I like your sense of humor - hope you get picked for best answer. If you're not kidding...well, I still like your answer. And to the person asking the question, there's an old saying that says when you commit a murder, you make at least 25 mistakes. If you can think of 18 of them, you're a genius. Just a thought...
What is dust made of? i heard human skin? if i'm allergic to dust...why am i not allergic to myself? lol...
So that's my problem...I'm probably allergic to myself.
What is dust made of? i heard human skin? if i'm allergic to dust...why am i not allergic to myself? lol...
Shed skin flakes and.....geez, I used to know this. Skin flakes and other stuff too. So maybe you're just allergic to the other stuff in the dust.
Reply:dust is mostly made of DEAD skin cells. the cells on you right now are still living. also, you could be allergic to dust because of other things like dustmites and dander and stuff in it.
Reply:Dust is made up of dead skin cells that gathers over a period of time.
Reply:Dust is actually the dead skin of dust mites. That is what you are allergic to.
http://hgic.clemson.edu/factsheets/HGIC2...
Here is some information. Good luck.
Reply:dirt, skin, bugs, pollen, ewwww
Reply:Yeah, dust is made in large part of dead human skin. Little bits of it flake off of you all the time, although you don't notice it.
You're not allergic to the dust. Odds are, you're allergic to the little creatures that live in it - dust mites. They're these very, very tiny things that live in and eat the dust - your dead skin. Dust mite allergies are quite common.
freesia
What is dust made of? i heard human skin? if i'm allergic to dust...why am i not allergic to myself? lol...
Shed skin flakes and.....geez, I used to know this. Skin flakes and other stuff too. So maybe you're just allergic to the other stuff in the dust.
Reply:dust is mostly made of DEAD skin cells. the cells on you right now are still living. also, you could be allergic to dust because of other things like dustmites and dander and stuff in it.
Reply:Dust is made up of dead skin cells that gathers over a period of time.
Reply:Dust is actually the dead skin of dust mites. That is what you are allergic to.
http://hgic.clemson.edu/factsheets/HGIC2...
Here is some information. Good luck.
Reply:dirt, skin, bugs, pollen, ewwww
Reply:Yeah, dust is made in large part of dead human skin. Little bits of it flake off of you all the time, although you don't notice it.
You're not allergic to the dust. Odds are, you're allergic to the little creatures that live in it - dust mites. They're these very, very tiny things that live in and eat the dust - your dead skin. Dust mite allergies are quite common.
freesia
How long does it take for a human skin cell to complete Mitosis?
Ah.. and how long does each stage take?
(Including Prophase, Interphase, Anaphase, and Telophase)
Thank You!
How long does it take for a human skin cell to complete Mitosis?
Cells that are undergoing constant mitosis such as hematopoetic stem cells (cells in your bone marrow that give rise to blood cells) and keratinocytes (skin cells) generally replicate in an ongoing manner about once a day, or faster. I should say that it is only the skin cells of the bottom two layers of epidermis that undergo replication (stratum basale, and stratum spinosum). Most of the replication occurs in the bottom layer of the epidermis (basale).
Most of the time will be spent in the pre-mitotic cell cycle stages, G1, S, and G2, giving the cell ample time to replicate its DNA, and prepare for the division. These stages are collectively referred to as 'interphase'. The G1 phase varies (it will be at least 4 hours), the G2 phase lasts aroud 4-5 hours, and the S phase is usually around 6-8 hours (this is when the DNA is replicating). So the entire interphase will be anywhere from 14-24 hours.
The mitotic process (the M phase) only takes about an hour. Prophase is usually the longest phase of mitosis, and is in itself often broken down into a few different substages. Once the metaphase stage begins, things move along pretty swiftly.
Hope that helps!
(Including Prophase, Interphase, Anaphase, and Telophase)
Thank You!
How long does it take for a human skin cell to complete Mitosis?
Cells that are undergoing constant mitosis such as hematopoetic stem cells (cells in your bone marrow that give rise to blood cells) and keratinocytes (skin cells) generally replicate in an ongoing manner about once a day, or faster. I should say that it is only the skin cells of the bottom two layers of epidermis that undergo replication (stratum basale, and stratum spinosum). Most of the replication occurs in the bottom layer of the epidermis (basale).
Most of the time will be spent in the pre-mitotic cell cycle stages, G1, S, and G2, giving the cell ample time to replicate its DNA, and prepare for the division. These stages are collectively referred to as 'interphase'. The G1 phase varies (it will be at least 4 hours), the G2 phase lasts aroud 4-5 hours, and the S phase is usually around 6-8 hours (this is when the DNA is replicating). So the entire interphase will be anywhere from 14-24 hours.
The mitotic process (the M phase) only takes about an hour. Prophase is usually the longest phase of mitosis, and is in itself often broken down into a few different substages. Once the metaphase stage begins, things move along pretty swiftly.
Hope that helps!
What pressure is the breaking point of human skin?
Experimental Investigation Into the Deep Penetration of Soft
Solids by Sharp and Blunt Punches, With Application to the
Piercing of Skin
Oliver A. Shergold and Norman A. Fleck*
Cambridge University Engineering Dept., Trumpington St., Cambridge, CB2 1PZ, UK
* Author for correspondence
Abstract
An experimental study has been conducted on the penetration of silicone rubbers and human skin in vivo by sharp-tipped and flat-bottomed cylindrical punches. A penetrometer was developed to measure the penetration of human skin in vivo, whilst a conventional screw-driven testing machine was used to penetrate the silicone rubbers. The experiments reveal that the penetration mechanism of a soft solid depends upon the punch tip geometry: a sharp tipped punch penetrates by the formation and wedging open of a mode I planar crack, whilst a flat-bottomed punch penetrates by the growth of a mode II ring crack.
The planar crack advances with the punch, and friction along the flanks of the punch leads to a rising load versus displacement response. In contrast, the flat-bottomed punch penetrates by jerky crack advance and the load on the punch is unsteady. The average penetration pressure on the shank cross-section of a flatbottomed punch exceeds that for a sharp-tipped punch of the same diameter. In addition, the penetration pressure decreases as the diameter of the sharp-tipped punch increases. These findings are in broad agreement with the predictions of Shergold and Fleck (Proceedings of the Royal Society, London, Series A, 2004), who proposed models for the penetration of a soft solid by a sharp-tipped and flat-bottomed punch. Keywords: deep penetration, skin puncture, silicone rubber, fracture mechanics, soft solids
1 INTRODUCTION
The deep penetration of a soft solid by a punch is of widespread technological importance, with applications ranging from the piercing of mammalian skin by a hypodermic needle (or by a liquid jet) in administering an injection, to the failure of rubber seals or tires by the penetration of a foreign body, such as a nail. The dependence of skin perforation upon the mechanical properties of skin, and the shape of the penetrator, is also relevant to the function and evolution of mammalian dentition: the successful predator must have sufficiently strong jaws and sharp teeth to cause skin perforation. And in remote robotic surgery, as well as in training simulators for surgical techniques, it is important to quantify the resistance of tissue to penetration [1].
Deep penetration models
The penetration mechanism observed for soft solids is different from that for strong, ductile solids such as metals, soils and polymers. Deep penetration of strong solids involves radial expansion of material at the penetrator tip [2, 3]. Bishop et al. [2] modelled penetration by the expansion of a cavity in an elasticideally plastic solid, and argued that the penetration pressure is comparable to the cavitation pressure pc, as defined by the pressure to expand the cavity from zero initial radius to a finite final radius. They showed that the cavitation pressure for an expanding spherical cavity is close to that for a cylindrical cavity and so the precise details of the cavity shape are relatively unimportant in the prediction of the penetration pressure. Typically, for metals pc is on the order of 4-5 times the uniaxial yield strength, depending upon the yield strain and the strain hardening rate.
Despite the ubiquitous nature of soft solid penetration, the existing literature provides little insight into the underlying mechanisms of penetration. A limited number of experimental studies indicate that the deep penetration of skin and rubber involves cracking of the soft solid, followed by substantial reversible deformation [4-6]. These studies also suggest that the crack geometry is sensitive to the punch tip geometry and to the material properties of the penetrated solid.
Stevenson and Abmalek [6] showed that a cylindrical, flat-bottomed punch of radius R penetrates natural rubbers by the formation of a mode II ring crack that propagates ahead of the penetrator tip, as shown in Figure 1a. The propagating ring crack forms a column, with an undeformed diameter of 2b and height l , as shown in Figure 1b. In this paper we shall demonstrate that a sharp-tipped punch penetrates silicone rubber and skin by the formation of a planar mode I crack ahead of the tip as shown in Figure 2a. The crack faces are wedged open by the advancing punch (Figure 2b), but on punch removal the planar crack closes (Figure 2c). In this final, relaxed configuration the crack length is 2a.
Solids by Sharp and Blunt Punches, With Application to the
Piercing of Skin
Oliver A. Shergold and Norman A. Fleck*
Cambridge University Engineering Dept., Trumpington St., Cambridge, CB2 1PZ, UK
* Author for correspondence
Abstract
An experimental study has been conducted on the penetration of silicone rubbers and human skin in vivo by sharp-tipped and flat-bottomed cylindrical punches. A penetrometer was developed to measure the penetration of human skin in vivo, whilst a conventional screw-driven testing machine was used to penetrate the silicone rubbers. The experiments reveal that the penetration mechanism of a soft solid depends upon the punch tip geometry: a sharp tipped punch penetrates by the formation and wedging open of a mode I planar crack, whilst a flat-bottomed punch penetrates by the growth of a mode II ring crack.
The planar crack advances with the punch, and friction along the flanks of the punch leads to a rising load versus displacement response. In contrast, the flat-bottomed punch penetrates by jerky crack advance and the load on the punch is unsteady. The average penetration pressure on the shank cross-section of a flatbottomed punch exceeds that for a sharp-tipped punch of the same diameter. In addition, the penetration pressure decreases as the diameter of the sharp-tipped punch increases. These findings are in broad agreement with the predictions of Shergold and Fleck (Proceedings of the Royal Society, London, Series A, 2004), who proposed models for the penetration of a soft solid by a sharp-tipped and flat-bottomed punch. Keywords: deep penetration, skin puncture, silicone rubber, fracture mechanics, soft solids
1 INTRODUCTION
The deep penetration of a soft solid by a punch is of widespread technological importance, with applications ranging from the piercing of mammalian skin by a hypodermic needle (or by a liquid jet) in administering an injection, to the failure of rubber seals or tires by the penetration of a foreign body, such as a nail. The dependence of skin perforation upon the mechanical properties of skin, and the shape of the penetrator, is also relevant to the function and evolution of mammalian dentition: the successful predator must have sufficiently strong jaws and sharp teeth to cause skin perforation. And in remote robotic surgery, as well as in training simulators for surgical techniques, it is important to quantify the resistance of tissue to penetration [1].
Deep penetration models
The penetration mechanism observed for soft solids is different from that for strong, ductile solids such as metals, soils and polymers. Deep penetration of strong solids involves radial expansion of material at the penetrator tip [2, 3]. Bishop et al. [2] modelled penetration by the expansion of a cavity in an elasticideally plastic solid, and argued that the penetration pressure is comparable to the cavitation pressure pc, as defined by the pressure to expand the cavity from zero initial radius to a finite final radius. They showed that the cavitation pressure for an expanding spherical cavity is close to that for a cylindrical cavity and so the precise details of the cavity shape are relatively unimportant in the prediction of the penetration pressure. Typically, for metals pc is on the order of 4-5 times the uniaxial yield strength, depending upon the yield strain and the strain hardening rate.
Despite the ubiquitous nature of soft solid penetration, the existing literature provides little insight into the underlying mechanisms of penetration. A limited number of experimental studies indicate that the deep penetration of skin and rubber involves cracking of the soft solid, followed by substantial reversible deformation [4-6]. These studies also suggest that the crack geometry is sensitive to the punch tip geometry and to the material properties of the penetrated solid.
Stevenson and Abmalek [6] showed that a cylindrical, flat-bottomed punch of radius R penetrates natural rubbers by the formation of a mode II ring crack that propagates ahead of the penetrator tip, as shown in Figure 1a. The propagating ring crack forms a column, with an undeformed diameter of 2b and height l , as shown in Figure 1b. In this paper we shall demonstrate that a sharp-tipped punch penetrates silicone rubber and skin by the formation of a planar mode I crack ahead of the tip as shown in Figure 2a. The crack faces are wedged open by the advancing punch (Figure 2b), but on punch removal the planar crack closes (Figure 2c). In this final, relaxed configuration the crack length is 2a.
What dissolves superglue when it's on human skin?
nail polish remover (acetate)
What dissolves superglue when it's on human skin?
nail polish remover..
I've had to use it a lot when i got super glue on me
Reply:superglue remover
Reply:Yes, nail polish remover works nicely, as well as the steam from a boiling pot of water, or so I've heard.
Reply:Try to get Acetone instead of regular polish remover - it's much stronger and works faster
Reply:Any solvent containing acetone like fingernail polish-remover.
Reply:Acetone
Reply:I would have to agree with the first two girls. But hey, what do I know I'm an 11 year old(going on twelve).
Reply:the only two things I know for sure are acetone(nail polish remover) or raising the temperature above 140 degrees. although you may try xylene or paint thinner but wash up well after as they may burn your skin over time
Reply:acetone or any other cleaning solvent
Reply:Soap and warm water. Don't try to rip it off. The oil and dead skin cells will prevent a perment sticking on the body.
Reply:rubbing alcohol
Reply:It's not acetate. It's acetone. Otherwise, you might try Goo Gon
What dissolves superglue when it's on human skin?
nail polish remover..
I've had to use it a lot when i got super glue on me
Reply:superglue remover
Reply:Yes, nail polish remover works nicely, as well as the steam from a boiling pot of water, or so I've heard.
Reply:Try to get Acetone instead of regular polish remover - it's much stronger and works faster
Reply:Any solvent containing acetone like fingernail polish-remover.
Reply:Acetone
Reply:I would have to agree with the first two girls. But hey, what do I know I'm an 11 year old(going on twelve).
Reply:the only two things I know for sure are acetone(nail polish remover) or raising the temperature above 140 degrees. although you may try xylene or paint thinner but wash up well after as they may burn your skin over time
Reply:acetone or any other cleaning solvent
Reply:Soap and warm water. Don't try to rip it off. The oil and dead skin cells will prevent a perment sticking on the body.
Reply:rubbing alcohol
Reply:It's not acetate. It's acetone. Otherwise, you might try Goo Gon
What muzzle velocity is needed to penetrate human skin? To reach vital organs?
Some rounds of my .38 special only fire at around 700 fps and I am wondering if this is sufficient bullet velocity to penetrate into vitals in a self defense situation.
What muzzle velocity is needed to penetrate human skin? To reach vital organs?
Definitely. A Crossman BBgun shooting at 200fps will at least break skin.
Reply:Penetration will depend on the energy the bullet has when it impacts its target, not really the muzzle velocity. That being said, any reasonable target you engage with your .38 in your house, or a close quarters situation would suffer fatal wounds. I would not count on this weapon to make many shots over 20 yards though.
Reply:We should ask for a home defense and a firearms section/s on yahoo answers....
Maybe we should have a vote or such.
Reply:I have a Ruger .44 magnum, It should do the job. I hope I never have to use it in that way.
ndcowboy
dieffenbacbia
What muzzle velocity is needed to penetrate human skin? To reach vital organs?
Definitely. A Crossman BBgun shooting at 200fps will at least break skin.
Reply:Penetration will depend on the energy the bullet has when it impacts its target, not really the muzzle velocity. That being said, any reasonable target you engage with your .38 in your house, or a close quarters situation would suffer fatal wounds. I would not count on this weapon to make many shots over 20 yards though.
Reply:We should ask for a home defense and a firearms section/s on yahoo answers....
Maybe we should have a vote or such.
Reply:I have a Ruger .44 magnum, It should do the job. I hope I never have to use it in that way.
ndcowboy
dieffenbacbia
If a certain dosage of aqua regia hits a human skin does it create skin burn and what is the best antidote?
Aqua Regia is a mix of highly concentrated Sulphuric and Nitric acids. It is arguably the most corrosive chemical available, outstripping Hydrofluric acid (the most reactive simple acid) by miles. It can dissolve gold and etch glass. If it splashed human skin the damage would be rapid and devistating. The only treatment would be a strong alkali to hopefully neutralise some of the acid (though the reaction could be violent) and copious water to wash the area. Surgical repair would undoubtedly be needed.
If a certain dosage of aqua regia hits a human skin does it create skin burn and what is the best antidote?
the best antidote is lye (sodium hydroxide), but then you have to add the perfect amount so you don't get burned by it (LoL). Better go with baking soda
If a certain dosage of aqua regia hits a human skin does it create skin burn and what is the best antidote?
the best antidote is lye (sodium hydroxide), but then you have to add the perfect amount so you don't get burned by it (LoL). Better go with baking soda
What are the effects of bleaching the human skin?
no other questions
What are the effects of bleaching the human skin?
Using bleach on the skin is not recommended. There are a number of medications that can be used to lighten the skin for people who have skin pigmentation problems. Hydroquinone 2 to 5% cream, tretinoin 0.05% cream, azelaic acid 20% cream or glycolic acid 12% cream or lotion are some of the recommended treatments for a condition called melasma. Melasma are dark discolourations of the skin in patches often localised to the face. Melasma is more common in women and is more likely to occur during pregnancy or due to some medications.
Reply:Michael Jackson?
fern
What are the effects of bleaching the human skin?
Using bleach on the skin is not recommended. There are a number of medications that can be used to lighten the skin for people who have skin pigmentation problems. Hydroquinone 2 to 5% cream, tretinoin 0.05% cream, azelaic acid 20% cream or glycolic acid 12% cream or lotion are some of the recommended treatments for a condition called melasma. Melasma are dark discolourations of the skin in patches often localised to the face. Melasma is more common in women and is more likely to occur during pregnancy or due to some medications.
Reply:Michael Jackson?
fern
What happened to the shrunken heads and human skin lampshades used as evidence at the Nuremberg Trials?
fakes? are you serious?
What happened to the shrunken heads and human skin lampshades used as evidence at the Nuremberg Trials?
Um. No offense but somethings are better not found out. Like what happens when you put a person in the middle of the sun. Or about decapitated shrunken' heads. No matter how cool it may seem.
What happened to the shrunken heads and human skin lampshades used as evidence at the Nuremberg Trials?
Um. No offense but somethings are better not found out. Like what happens when you put a person in the middle of the sun. Or about decapitated shrunken' heads. No matter how cool it may seem.
What is the secound layer of the human skin?
Actually the Dermis is the second layer of skin the Epidermis is the outer most layer.
The dermis lies below the epidermis and contains a number of structures including blood vessels, nerves, hair follicles, smooth muscle, glands and lymphatic tissue.
What is the secound layer of the human skin?
Epideuris
The dermis lies below the epidermis and contains a number of structures including blood vessels, nerves, hair follicles, smooth muscle, glands and lymphatic tissue.
What is the secound layer of the human skin?
Epideuris
What is the refractive index of human skin at about 4 micron wavelength?
The RI of human skin is reported to be 1.4
4 mu means 4000 nm, thats towards the UVs so they would penetrate the skin.
4 mu means 4000 nm, thats towards the UVs so they would penetrate the skin.
What best explains the inheritances of human skin pigmentation?
A. codominance.
B. genes and environmental effects.
C. simple dominance.
D. polygenic inheritance.
E. sex-linked recessive inheritance.
What best explains the inheritances of human skin pigmentation?
B.genes and environmental effects.
sword fern
B. genes and environmental effects.
C. simple dominance.
D. polygenic inheritance.
E. sex-linked recessive inheritance.
What best explains the inheritances of human skin pigmentation?
B.genes and environmental effects.
sword fern
What is the dermis in the human skin and what are its functions?
It's the bit that helps you when you look up this in a proper biology book, say, in the library.
What is the dermis in the human skin and what are its functions?
The dremis is the sensitive vascular portion of the skin just underneath the epidermis.
Reply:the dermis is inner layers of skin lying beneath the epidermis. it's composed of collagen fibres interlaced with elastic fibres.
structures in it are: blood vessels, supplying sweat glands and hair follicles. Lymph vessels, forming a network throughout the dermis and deeper layers of epidermis. Nerve endings, which are sensitive to touch, change in temperature pressure and pain.
Reply:The dermis is a layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis is tightly connected to the epidermis by a basement membrane. It also harbors many nerve endings that provide the sense of touch and heat. It contains the hair follicles, sweat glands, sebaceous glands, apocrine glands and blood vessels. The blood vessels in the dermis provide nourishment and waste removal to its own cells as well as the Stratum basale of the epidermis.
The dermis is structurally divided into two areas: a superficial area adjacent to the epidermis, called the papillary region, and a deep thicker area known as the reticular region.
The papillary region is composed of loose areolar connective tissue. It is named for its fingerlike projections called papillae, that extend toward the epidermis. The papillae provide the dermis with a "bumpy" surface that interdigitates with the epidermis, strengthening the connection between the two layers of skin.
In the palms, fingers, soles, and toes, the influence of the papillae projecting into the epidermis forms contours in the skin's surface. These are called friction ridges, because they help the hand or foot to grasp by increasing friction. Friction ridges occur in patterns (see fingerprint) that are genetically determined and are therefore unique to the individual, making it possible to use fingerprints or footprints as a means of identification.
The reticular region lies deep in the papillary region and is usually much thicker. It is composed of dense irregular connective tissue, and receives its name from the dense concentration of collagenous, elastic, and reticular fibers that weave throughout it. These protein fibers give the dermis its properties of strength, extensibility, and elasticity.
Located within the reticular region are also the hair roots, sebaceous glands, sweat glands, receptors, nails, and blood vessels.
Tattoo ink is injected into the dermis. Stretch marks are also located in the dermis.
Reply:It is the second layer of the skin (from outside). It houses lots of nerve cells that help you to sense touch, pain, temperature and the like. It also contains glands that produce secretions in case of increased heat content of the body....
but you better read about your own assignment than posting a question on yahoo.... this site is mainly for things that you won't find in textbooks
Reply:The dermis is a layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis is tightly connected to the epidermis by a basement membrane. It also harbors many nerve endings that provide the sense of touch and heat. It contains the hair follicles, sweat glands, sebaceous glands, apocrine glands and blood vessels. The blood vessels in the dermis provide nourishment and waste removal to its own cells as well as the Stratum basale of the epidermis.
Reply:skin is totally called dermis it has epidermis mesodermis %26amp; endodermis
What is the dermis in the human skin and what are its functions?
The dremis is the sensitive vascular portion of the skin just underneath the epidermis.
Reply:the dermis is inner layers of skin lying beneath the epidermis. it's composed of collagen fibres interlaced with elastic fibres.
structures in it are: blood vessels, supplying sweat glands and hair follicles. Lymph vessels, forming a network throughout the dermis and deeper layers of epidermis. Nerve endings, which are sensitive to touch, change in temperature pressure and pain.
Reply:The dermis is a layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis is tightly connected to the epidermis by a basement membrane. It also harbors many nerve endings that provide the sense of touch and heat. It contains the hair follicles, sweat glands, sebaceous glands, apocrine glands and blood vessels. The blood vessels in the dermis provide nourishment and waste removal to its own cells as well as the Stratum basale of the epidermis.
The dermis is structurally divided into two areas: a superficial area adjacent to the epidermis, called the papillary region, and a deep thicker area known as the reticular region.
The papillary region is composed of loose areolar connective tissue. It is named for its fingerlike projections called papillae, that extend toward the epidermis. The papillae provide the dermis with a "bumpy" surface that interdigitates with the epidermis, strengthening the connection between the two layers of skin.
In the palms, fingers, soles, and toes, the influence of the papillae projecting into the epidermis forms contours in the skin's surface. These are called friction ridges, because they help the hand or foot to grasp by increasing friction. Friction ridges occur in patterns (see fingerprint) that are genetically determined and are therefore unique to the individual, making it possible to use fingerprints or footprints as a means of identification.
The reticular region lies deep in the papillary region and is usually much thicker. It is composed of dense irregular connective tissue, and receives its name from the dense concentration of collagenous, elastic, and reticular fibers that weave throughout it. These protein fibers give the dermis its properties of strength, extensibility, and elasticity.
Located within the reticular region are also the hair roots, sebaceous glands, sweat glands, receptors, nails, and blood vessels.
Tattoo ink is injected into the dermis. Stretch marks are also located in the dermis.
Reply:It is the second layer of the skin (from outside). It houses lots of nerve cells that help you to sense touch, pain, temperature and the like. It also contains glands that produce secretions in case of increased heat content of the body....
but you better read about your own assignment than posting a question on yahoo.... this site is mainly for things that you won't find in textbooks
Reply:The dermis is a layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis is tightly connected to the epidermis by a basement membrane. It also harbors many nerve endings that provide the sense of touch and heat. It contains the hair follicles, sweat glands, sebaceous glands, apocrine glands and blood vessels. The blood vessels in the dermis provide nourishment and waste removal to its own cells as well as the Stratum basale of the epidermis.
Reply:skin is totally called dermis it has epidermis mesodermis %26amp; endodermis
Is there any books made with human skin?
Such things as this were done in the concentration camps during WWII. They would also take the tattoos off of bodies to make lampshades.
Refer to the link below for more information or to watch "Frontline: Memories of the Camps". It is actual footage of the atrocities suffered there.
Is there any books made with human skin?
well maybe some sicko made one i dont think tahts legal rofl
Reply:Yes. But most people have better sense than to donate to the cause.
How about you? Care to make a donation?
Reply:I have a 1965 Houston Telephone directory - missing the Yellow Pages - that is made out of human skin. OK, some of it is a bit suspect. I think that some of the humans may be Cousin Porky, you know? And there is a branding iron mark on one of the back pages. Dang!
Guess you may have to search on eBay. What homework they give kids these days!!
Reply:That'd be kinda stupid...human skin isn't as tough as animal skin, and so it wouldn't last very long.
Reply:There was a book recently discovered in a library in England where the cover of the book was made of human skin. However the rest of the book was not.
Reply:yes
Reply:the necronomicon
Reply:Unfortunatly yes. These books are rarely found due to the decomposition properties of human skin. But a couple books wraped in human skin have been found. These books tend to be closely related to satanism.
Reply:if you were to find an original edition of the
"necronomicon" it would be wrapped this way. However, any version of this book is very dangerous and should not even be opened, much less read. the knowledge contained in that book is not for many to know. It is a book that instructs you how to raise and control the dead, often mis-associated with devil worship, it is more associated with alchemy and necromancy. you dont wanna go there!
Refer to the link below for more information or to watch "Frontline: Memories of the Camps". It is actual footage of the atrocities suffered there.
Is there any books made with human skin?
well maybe some sicko made one i dont think tahts legal rofl
Reply:Yes. But most people have better sense than to donate to the cause.
How about you? Care to make a donation?
Reply:I have a 1965 Houston Telephone directory - missing the Yellow Pages - that is made out of human skin. OK, some of it is a bit suspect. I think that some of the humans may be Cousin Porky, you know? And there is a branding iron mark on one of the back pages. Dang!
Guess you may have to search on eBay. What homework they give kids these days!!
Reply:That'd be kinda stupid...human skin isn't as tough as animal skin, and so it wouldn't last very long.
Reply:There was a book recently discovered in a library in England where the cover of the book was made of human skin. However the rest of the book was not.
Reply:yes
Reply:the necronomicon
Reply:Unfortunatly yes. These books are rarely found due to the decomposition properties of human skin. But a couple books wraped in human skin have been found. These books tend to be closely related to satanism.
Reply:if you were to find an original edition of the
"necronomicon" it would be wrapped this way. However, any version of this book is very dangerous and should not even be opened, much less read. the knowledge contained in that book is not for many to know. It is a book that instructs you how to raise and control the dead, often mis-associated with devil worship, it is more associated with alchemy and necromancy. you dont wanna go there!
In what ways do the onion skin calls differ from the human skin calls?
size, shape, some onion cells contain chloroplasts(no human skin cells do).
onion cells have an organized pattern similar to rows of rectangles where as skin cells are unorganized and look like circles squashed together.
http://waynesword.palomar.edu/images/oni...
http://www.labvision.com/images/ihcimage...
onion cells have cell walls, human skin cells have plasma membrane.
In what ways do the onion skin calls differ from the human skin calls?
human skin cells are living onion skin cells are not
Reply:Onions have cell walls.
Reply:Calls?
Reply:an onion is an onion, and human skin is human skin. human- living, onion-not.
Reply:Onions cells have cell walls and are dead. Human cells only have a cell membrane and are alive, and also have a lysosome which onion cells do not have. They also have a much smaller vacuole.
onion cells have an organized pattern similar to rows of rectangles where as skin cells are unorganized and look like circles squashed together.
http://waynesword.palomar.edu/images/oni...
http://www.labvision.com/images/ihcimage...
onion cells have cell walls, human skin cells have plasma membrane.
In what ways do the onion skin calls differ from the human skin calls?
human skin cells are living onion skin cells are not
Reply:Onions have cell walls.
Reply:Calls?
Reply:an onion is an onion, and human skin is human skin. human- living, onion-not.
Reply:Onions cells have cell walls and are dead. Human cells only have a cell membrane and are alive, and also have a lysosome which onion cells do not have. They also have a much smaller vacuole.
What is fibroblast protocol culture from human skin?
Primary cultures or immortalized cells?
I use CF3 and they grow just fine in DMEM + 10% BCS, they have contact inhibition, so you need to split them twice a week (if they become 100% confluent, they will detach from the dish).
plant tables
I use CF3 and they grow just fine in DMEM + 10% BCS, they have contact inhibition, so you need to split them twice a week (if they become 100% confluent, they will detach from the dish).
plant tables
What spf is the normal/average human skin without any protection?
be as exact as possible please!
What spf is the normal/average human skin without any protection?
On the spf scale it would be a 0.
What spf is the normal/average human skin without any protection?
On the spf scale it would be a 0.
What is the nutritional value of human skin?
Is it good for you?
How many calories does it have?
What is the nutritional value of human skin?
That depends on if it's dead flaky skin or fresh. The human epidermis is chock full of nutritional value.
Reply:yes it is good for you
zero
Reply:I don't know if it's good for you, but it's tasty. D to the E to the L I C I O U S.
Reply:probably a whole lotta protein
Reply:dont know
but apparently human skin tastes like pork..
Reply:Good question
Reply:I have no idea, but i like your style.
Humans certainly smell like pork when burning. Hide round the back of your local crematorium to verify this
A deliciously wicked question
Reply:why would u eat a human?
Reply:are you really that bored?
or just starved for attention
Reply:Same as chicken? Depends. Are you frying or baking?
Reply:zilch zip zero? lol
Reply:what the... why do you want to know the nutritional value of human skin? don't tell be you want to resort to cannibalism. my gosh that is a strange question to ask.
Reply:i would think it would be about as good for you as any other meat. the calories and nutritional value would probably depend on the age and health of the person, just like an animal.
that's a really creepy question BTW.
Reply:It is probably horrible for you seeing as how humans eat random chemicals and food additives everyday. Hhahaah
Reply:uh h, the path to cannibalism isn't very good =/
Reply:Wow, that's disturbing... Hmm, I wonder if there are more calories in fat people's skin... or vice versa.
Reply:freak
Reply:OK this is a strange question, but my guess is there are no calaroies. I would think though that some human skin would be more salty than others.
Reply:Planning on muching on someone?
Reply:why eat skin when you can have meat/muscle tissue? who eats just chicken skins anyways?
Reply:Sick sick individual.
Reply:i dont know...and i dont want to know
How many calories does it have?
What is the nutritional value of human skin?
That depends on if it's dead flaky skin or fresh. The human epidermis is chock full of nutritional value.
Reply:yes it is good for you
zero
Reply:I don't know if it's good for you, but it's tasty. D to the E to the L I C I O U S.
Reply:probably a whole lotta protein
Reply:dont know
but apparently human skin tastes like pork..
Reply:Good question
Reply:I have no idea, but i like your style.
Humans certainly smell like pork when burning. Hide round the back of your local crematorium to verify this
A deliciously wicked question
Reply:why would u eat a human?
Reply:are you really that bored?
or just starved for attention
Reply:Same as chicken? Depends. Are you frying or baking?
Reply:zilch zip zero? lol
Reply:what the... why do you want to know the nutritional value of human skin? don't tell be you want to resort to cannibalism. my gosh that is a strange question to ask.
Reply:i would think it would be about as good for you as any other meat. the calories and nutritional value would probably depend on the age and health of the person, just like an animal.
that's a really creepy question BTW.
Reply:It is probably horrible for you seeing as how humans eat random chemicals and food additives everyday. Hhahaah
Reply:uh h, the path to cannibalism isn't very good =/
Reply:Wow, that's disturbing... Hmm, I wonder if there are more calories in fat people's skin... or vice versa.
Reply:freak
Reply:OK this is a strange question, but my guess is there are no calaroies. I would think though that some human skin would be more salty than others.
Reply:Planning on muching on someone?
Reply:why eat skin when you can have meat/muscle tissue? who eats just chicken skins anyways?
Reply:Sick sick individual.
Reply:i dont know...and i dont want to know
How to get Permanent Marker off human skin?
My 5 year old son decided to paint his arms %26amp; legs with a blue permanent marker. Now I need help getting it off. Please help me out if you can.
How to get Permanent Marker off human skin?
LOL. Sorry to laugh but this reminds me of my son. When he was in junior high they did a skit where him and his friends dressed up as the Village People. My son thought it would be cool to draw chest hair on himself and did it with a black magic marker. Well, we never did find anything that would remove that off of him. It did fade, going through various stages of blue to green in the process.
Sorry I wasn't any help. If there are no good suggestions out here coming your way, don't worry, it will eventually wear off.
Reply:hahahah omg,,,,i typed permanent marker off in search engine after waking up with my three year old son looking like a goth nightmare,,,all fingernails and toes,,,,,thankyou all for the morning laugh....and advice Report It
Reply:My 7 yr old and his friend gave each other mustaches and beards with permanent marker. Also wrote their names on each others foreheads. Rubbing alcohol didn't do much. Nail polish remover did take it all off. I would suggest bathing them immediately after. Report It
Reply:Sometimes it will come off with a good warm bubble bath. Sometimes rubbing alcohol will work or at least lighten it. Make sure you wash him afterwards and apply lotion as the alcohol can be drying to the skin.
Reply:Nail polish remover..!!
Reply:The season finale of 7th Heaven posed this question. Neither Anne nor Eric could figure it out. Apparently some Irish guy did.....nail polish remover! (it worked in the show)
Reply:use nail polish. It really works
Reply:hahahahahahahahahahaha, maybe you can change his name to Curious Smurf? hahahahahahahahha, that's kids for you, best of luck!
How to get Permanent Marker off human skin?
LOL. Sorry to laugh but this reminds me of my son. When he was in junior high they did a skit where him and his friends dressed up as the Village People. My son thought it would be cool to draw chest hair on himself and did it with a black magic marker. Well, we never did find anything that would remove that off of him. It did fade, going through various stages of blue to green in the process.
Sorry I wasn't any help. If there are no good suggestions out here coming your way, don't worry, it will eventually wear off.
Reply:hahahah omg,,,,i typed permanent marker off in search engine after waking up with my three year old son looking like a goth nightmare,,,all fingernails and toes,,,,,thankyou all for the morning laugh....and advice Report It
Reply:My 7 yr old and his friend gave each other mustaches and beards with permanent marker. Also wrote their names on each others foreheads. Rubbing alcohol didn't do much. Nail polish remover did take it all off. I would suggest bathing them immediately after. Report It
Reply:Sometimes it will come off with a good warm bubble bath. Sometimes rubbing alcohol will work or at least lighten it. Make sure you wash him afterwards and apply lotion as the alcohol can be drying to the skin.
Reply:Nail polish remover..!!
Reply:The season finale of 7th Heaven posed this question. Neither Anne nor Eric could figure it out. Apparently some Irish guy did.....nail polish remover! (it worked in the show)
Reply:use nail polish. It really works
Reply:hahahahahahahahahahaha, maybe you can change his name to Curious Smurf? hahahahahahahahha, that's kids for you, best of luck!
What is the weight of the human skin?
This is one of the many million questions my dermatalology prof had asked me which I was unable to answer, one thing I do know that it is heavier then the liver (ie., more than 1.5 Kg).
What is the weight of the human skin?
The skin of a human adult weighs about nine pounds
Reply:The skin is the largest organ of the body - the weight of it will depend on the size of the human you are talking about.
Reply:It is 15% of total body weight roughly.
May I skin you labyrint... ?
asparagus fern
What is the weight of the human skin?
The skin of a human adult weighs about nine pounds
Reply:The skin is the largest organ of the body - the weight of it will depend on the size of the human you are talking about.
Reply:It is 15% of total body weight roughly.
May I skin you labyrint... ?
asparagus fern
What material is the closest to human skin?
I am looking to create a wide variety of lifelike body parts for a kinesiology class. I need the material to be durable and dishwasher safe
What material is the closest to human skin?
If you have ever watched the television show Mythbusters on the Discovery channel, they use a material called ballistics gel for duplicating human skin. It has the same properties and it is very close to the behavior of skin.
Reply:I agree with the first poster, and I learned this from Mythbusters as well! I just wanted to show you this site I had found before about how to make your own ballistics gelatin. Hope this helps!
http://www.myscienceproject.org/gelatin....
More general info about ballistics gel:
http://en.wikipedia.org/wiki/Ballistic_g...
Reply:you can use paint on body latex if you are looking for somthing kinky
What material is the closest to human skin?
If you have ever watched the television show Mythbusters on the Discovery channel, they use a material called ballistics gel for duplicating human skin. It has the same properties and it is very close to the behavior of skin.
Reply:I agree with the first poster, and I learned this from Mythbusters as well! I just wanted to show you this site I had found before about how to make your own ballistics gelatin. Hope this helps!
http://www.myscienceproject.org/gelatin....
More general info about ballistics gel:
http://en.wikipedia.org/wiki/Ballistic_g...
Reply:you can use paint on body latex if you are looking for somthing kinky
Monday, November 16, 2009
How does water temperature effect the human skin?
Well hot water can of course burn, but to a lesser extent, say when you take a hot shower two not so drastic things can happen :
1) Your pores will open, making this an optimal time to say wash your face if you have skin problems.
2) Your skin will dry out, they say it's bad to take a hot shower in the winter, as skin is already subseptible to dryness, but really when else is it the best?
Cold water will close those pores.
How does water temperature effect the human skin?
Same as any other temperature - hot burns, cold freezes
Reply:There are 7 temps of interest. Four are used as hydro therapy.
Those are within a degree or two 130, 124, 116, 110. Though
these are used in quick bursts to open pours, relax hair, or
lighten blood pressure in general, very professional tools and
applications are available. Also 70s for hot tubs cause the
joints to swell or relax also dependent on the tools, or jets,
and cause a general sense of upgrades and focus. 80s
hot bathes, hot tubs, jacuzzi, pools, swimming pools are the
best at maintaining a tan, the muscle tone, and low fat shape.
The newest warm wave pools is now making some new data.
Finally 101 is a magic number for the heat activates the neck,
shoulders and is the most refreshing, also a good sauna and
steam temperature.
Reply:Water temperature that is below the temperature of the body will cause the body to loose heat at a rate 25X that of air. That is why SCUBA divers have to wear wet and dry suits in cooler water to prevent hypothermia. The rate of body heat is removed so rapidly it causes cramps and even loss of consciousness.
1) Your pores will open, making this an optimal time to say wash your face if you have skin problems.
2) Your skin will dry out, they say it's bad to take a hot shower in the winter, as skin is already subseptible to dryness, but really when else is it the best?
Cold water will close those pores.
How does water temperature effect the human skin?
Same as any other temperature - hot burns, cold freezes
Reply:There are 7 temps of interest. Four are used as hydro therapy.
Those are within a degree or two 130, 124, 116, 110. Though
these are used in quick bursts to open pours, relax hair, or
lighten blood pressure in general, very professional tools and
applications are available. Also 70s for hot tubs cause the
joints to swell or relax also dependent on the tools, or jets,
and cause a general sense of upgrades and focus. 80s
hot bathes, hot tubs, jacuzzi, pools, swimming pools are the
best at maintaining a tan, the muscle tone, and low fat shape.
The newest warm wave pools is now making some new data.
Finally 101 is a magic number for the heat activates the neck,
shoulders and is the most refreshing, also a good sauna and
steam temperature.
Reply:Water temperature that is below the temperature of the body will cause the body to loose heat at a rate 25X that of air. That is why SCUBA divers have to wear wet and dry suits in cooler water to prevent hypothermia. The rate of body heat is removed so rapidly it causes cramps and even loss of consciousness.
In what ways do the onion skin calls differ from the human skin calls?
Well, for one thing, one is a plant cell, which has a cell wall and the other is an animal cell which has a semi-permeable membrane or Phopholipid bilayer.
In what ways do the onion skin calls differ from the human skin calls?
Well, for one thing, onion skin cells have a cell wall; human skin cells do not.
Reply:onion skin cell has a cell wall while human has no cell wall it has a partially permeable cell membrane
In what ways do the onion skin calls differ from the human skin calls?
Well, for one thing, onion skin cells have a cell wall; human skin cells do not.
Reply:onion skin cell has a cell wall while human has no cell wall it has a partially permeable cell membrane
What type of EM radiation tans human skin?
Its UV or ultra voilet Radiation
What type of EM radiation tans human skin?
Physicists divide the ultraviolet spectrum into UVA, UVB and UVC bands. All will tan skin. UVC is very dangerous to skin, but is blocked by the atmosphere for the most part. UVB and UVA tan skin but are also dangerous and cause cancer. Unfortunately, most sunscreens only block UVB (see attached).
aspidistra
What type of EM radiation tans human skin?
Physicists divide the ultraviolet spectrum into UVA, UVB and UVC bands. All will tan skin. UVC is very dangerous to skin, but is blocked by the atmosphere for the most part. UVB and UVA tan skin but are also dangerous and cause cancer. Unfortunately, most sunscreens only block UVB (see attached).
aspidistra
In what ways do the onion skin cells differ from the human skin cells?
The biggest difference is the cellulose wall that is present on all plant cells but not on animal cells.
In what ways do the onion skin cells differ from the human skin cells?
Simple.... one is a plant; the other from a animal
In what ways do the onion skin cells differ from the human skin cells?
Simple.... one is a plant; the other from a animal
Howmany number of pores on the human skin?
The average square inch of skin holds 650 sweat glands, 20 blood vessels, 60,000 melanocytes, and more than a thousand nerve endings.
so for every 650 sweat glands there must be atleast 650 pores (openings) square inch. it can be more.
Howmany number of pores on the human skin?
Alot Report It
Reply:i dont knoe how many pores but there are 6 or 7 layers of skin?
Reply:On a good day there are a whole bunch
Reply:unlimited
Reply:probably millions and trillions
so for every 650 sweat glands there must be atleast 650 pores (openings) square inch. it can be more.
Howmany number of pores on the human skin?
Alot Report It
Reply:i dont knoe how many pores but there are 6 or 7 layers of skin?
Reply:On a good day there are a whole bunch
Reply:unlimited
Reply:probably millions and trillions
How can grimes stay in the human skin? How to remove them if they've already stayed and spread?
The grime that I saw is so thick and they color are black. When I tried to remove them by baby oil, it does not work at all. Can anyone help me to solve the problem? Thanks
How can grimes stay in the human skin? How to remove them if they've already stayed and spread?
try scrubbing with a soft brush and soap and water.
Reply:Try Goop.
Reply:If a 'grime' is a blackhead, try Biore Pore Strips.
How can grimes stay in the human skin? How to remove them if they've already stayed and spread?
try scrubbing with a soft brush and soap and water.
Reply:Try Goop.
Reply:If a 'grime' is a blackhead, try Biore Pore Strips.
In what ways do onion skin (epithelial) cells differ from the human skin cheek (epithelial) cells?
im just wondering about this. Please help. I forgot waht it looks like under a micrscope! I will award best answer to anyone who gives me an approprate answer:) Please help:)
In what ways do onion skin (epithelial) cells differ from the human skin cheek (epithelial) cells?
Onion "skin" isn't really skin at all.
An onion is made of layers and layers of specialized, nutrient-storing *leaves*. The "skin" is just the dead, dried up outer layers.
Onion cells tend to be much larger than human cells. They have a visible cell wall. Onion cells are long, tube-shaped, and tend to have a very large central vacuole, with their nucleus and organelles crowded around the inside of the cell wall.
Human cheek cells are thin, flat, pancake shaped, and fibrous. Depending on how you stain them, the nucleus may be visible roughly at the center of the cell. They have no cell wall.
~W.O.M.B.A.T.
Reply:Onion skin cells have a thick cellulose cell wall, making the individual cells much tougher and able to withstand pressure. Human cells have no cell wall, only a thin lipid-bilayer cell membrane. That is the biggest visual difference.
Reply:onion skin cells have cell wall. human cheek cells do not.
china lily
In what ways do onion skin (epithelial) cells differ from the human skin cheek (epithelial) cells?
Onion "skin" isn't really skin at all.
An onion is made of layers and layers of specialized, nutrient-storing *leaves*. The "skin" is just the dead, dried up outer layers.
Onion cells tend to be much larger than human cells. They have a visible cell wall. Onion cells are long, tube-shaped, and tend to have a very large central vacuole, with their nucleus and organelles crowded around the inside of the cell wall.
Human cheek cells are thin, flat, pancake shaped, and fibrous. Depending on how you stain them, the nucleus may be visible roughly at the center of the cell. They have no cell wall.
~W.O.M.B.A.T.
Reply:Onion skin cells have a thick cellulose cell wall, making the individual cells much tougher and able to withstand pressure. Human cells have no cell wall, only a thin lipid-bilayer cell membrane. That is the biggest visual difference.
Reply:onion skin cells have cell wall. human cheek cells do not.
china lily
What is the pH of human skin?
Human Skins pH Value is somewhere between 4.6 %26amp; 6
What is the pH of human skin?
skin's not a liquid... it has no PH. sweat has a Ph which escapes me at the moment (though if memory serves it's very mildly acidic.)
Reply:Not exactly sure may want to ask a Dr but, the human eye is 7.4
Reply:7.6 I think
Reply:Depends on the human.
What is the pH of human skin?
skin's not a liquid... it has no PH. sweat has a Ph which escapes me at the moment (though if memory serves it's very mildly acidic.)
Reply:Not exactly sure may want to ask a Dr but, the human eye is 7.4
Reply:7.6 I think
Reply:Depends on the human.
What is fungus dease on human skin?
Fungal skin infections are caused by yeasts (Candida sp) or dermatophytes (Epidermophyton, Microsporum, and Trichophyton spp).
Dermatophytoses are fungal infections of keratin in the skin and nails (nail infection is called tinea unguium). Onychomycosis is fungal infection of the nail plate, nail bed, or both.
Symptoms and signs vary by site of infection. Diagnosis is by clinical appearance and by examination of skin scraping on potassium hydroxide wet mount. Treatment varies by site but always involves topical or oral antifungal drugs.
Candidiasis (moniliasis) is skin infection with Candida sp, most commonly Candida albicans. Infections can occur anywhere and are most common in skinfolds and web spaces, on the penis, and around fingernails. Symptoms and signs vary by site. Diagnosis is by clinical appearance and potassium hydroxide wet mount of skin scrapings. Treatment is with drying agents and antifungals.
Please see the web pages for more details on Ringworm, Dermatophytosis, Candidiasis, Intertrigo and Tinea Versicolor.
What is fungus dease on human skin?
athlete's foot is most common
Reply:Ringworm is fairly common.
Reply:dease?
there is a fungus amongus...
Reply:Tinea.
Reply:Athletes foot, excema, thrush, gangrene are the most common. Hope this helps. :)
Dermatophytoses are fungal infections of keratin in the skin and nails (nail infection is called tinea unguium). Onychomycosis is fungal infection of the nail plate, nail bed, or both.
Symptoms and signs vary by site of infection. Diagnosis is by clinical appearance and by examination of skin scraping on potassium hydroxide wet mount. Treatment varies by site but always involves topical or oral antifungal drugs.
Candidiasis (moniliasis) is skin infection with Candida sp, most commonly Candida albicans. Infections can occur anywhere and are most common in skinfolds and web spaces, on the penis, and around fingernails. Symptoms and signs vary by site. Diagnosis is by clinical appearance and potassium hydroxide wet mount of skin scrapings. Treatment is with drying agents and antifungals.
Please see the web pages for more details on Ringworm, Dermatophytosis, Candidiasis, Intertrigo and Tinea Versicolor.
What is fungus dease on human skin?
athlete's foot is most common
Reply:Ringworm is fairly common.
Reply:dease?
there is a fungus amongus...
Reply:Tinea.
Reply:Athletes foot, excema, thrush, gangrene are the most common. Hope this helps. :)
If 80% of dust is human skin, most of which is shed when we take our clothes off....?
...who's been in my loft?
If 80% of dust is human skin, most of which is shed when we take our clothes off....?
ME!!! Sorry pal caught bang to rights, did you see the minute hole I drilled in your ceiling, the movies go out Friday on U tube. do book a front row seat, you did quite well.
Reply:erm...what!?
Reply:ha ha...is there someone hiding up there ?
Reply:Dust to dust, we all live our lives that way, including your loft.
Reply:It gets blown around like when people walk in the the room and cause it to move.
Reply:lots of dead skin cells.... maybe you should start cleaning..
Reply:your stalker.
Reply:You?!
Reply:you your friends maybe family or girlfriend or boyfriend and whomever they are cheating on you with
Reply:The dust or shedded skin has traveled to your loft.
Reply:Maybe poltergeists shed too..........lol
Reply:not just when we take our clothes off, but scratch an itch or anything. It's suspended in the air and settles out. May be deposited somewhere if you have forced air heat
Reply:You can easily take off skin cells when u scratch or even rub ur skin against something else. That goes into the dust
Reply:I think the 80% human debris only relates to living rooms and not all spaces in a house. Certainly in my garage for example it is 80% wind blown debris comprising all sorts of matter that blows on the wind - e.g. pollen, dust, grit, leaf particles. In my loft it is mainly glass fibre particles from the insulation material
Reply:Your question really made me laugh, most unexpected, should have been in jokes and riddles! It does make you wonder where it all comes from though doesn't it?
Reply:it was me ive been in your loft
If 80% of dust is human skin, most of which is shed when we take our clothes off....?
ME!!! Sorry pal caught bang to rights, did you see the minute hole I drilled in your ceiling, the movies go out Friday on U tube. do book a front row seat, you did quite well.
Reply:erm...what!?
Reply:ha ha...is there someone hiding up there ?
Reply:Dust to dust, we all live our lives that way, including your loft.
Reply:It gets blown around like when people walk in the the room and cause it to move.
Reply:lots of dead skin cells.... maybe you should start cleaning..
Reply:your stalker.
Reply:You?!
Reply:you your friends maybe family or girlfriend or boyfriend and whomever they are cheating on you with
Reply:The dust or shedded skin has traveled to your loft.
Reply:Maybe poltergeists shed too..........lol
Reply:not just when we take our clothes off, but scratch an itch or anything. It's suspended in the air and settles out. May be deposited somewhere if you have forced air heat
Reply:You can easily take off skin cells when u scratch or even rub ur skin against something else. That goes into the dust
Reply:I think the 80% human debris only relates to living rooms and not all spaces in a house. Certainly in my garage for example it is 80% wind blown debris comprising all sorts of matter that blows on the wind - e.g. pollen, dust, grit, leaf particles. In my loft it is mainly glass fibre particles from the insulation material
Reply:Your question really made me laugh, most unexpected, should have been in jokes and riddles! It does make you wonder where it all comes from though doesn't it?
Reply:it was me ive been in your loft
Can bacteria from dogshit penetrate human skin?
some fluid in dogshit can penetrate the skin but the bacteria stay on the surface
Can bacteria from dogshit penetrate human skin?
Everything you touch penetrates your skin.
Reply:Only if there is an opening, like a cut or wound.
oyster plant
Can bacteria from dogshit penetrate human skin?
Everything you touch penetrates your skin.
Reply:Only if there is an opening, like a cut or wound.
oyster plant
How many small hole in human skin?
A couple million or so. Why do you care?
If you're like most of the people I know of in America, counting your pores would give your life new-found meaning.
So I commend you.
How many small hole in human skin?
they are called pores
Reply:If you speak of pores the answer is not one that is set for each person. Depending on the size of the individual that number will vary by a lot.
Reply:they r called pores,they r numerous...
Reply:On the molecular level, more than 10^23 holes per cubic centimeter.
Reply:I counted 7.
9 with ears pierced.
Reply:It depends on what is small hole for you.
If you consider a skin pore for you, then it would be hundreds of thousands.
If you consider in a perspective of a physicist, there would be no hole in the human skin since the skin is made up of atoms. This atoms are made 90% space. So the whole skin is 90% empty. Skin are intact because of the strong intermolecular and intramolecular forces between atoms.
Reply:Pores are the holes in the body and we have numerous to many too count.
Reply:According to my net surfing: There's two million pores on the average person.
If the pores on your nose does seem more significant than any others, keep the pores clean and small with daily cleansing and use something astringent e.g. cucumber to shrink the pores.
If you're like most of the people I know of in America, counting your pores would give your life new-found meaning.
So I commend you.
How many small hole in human skin?
they are called pores
Reply:If you speak of pores the answer is not one that is set for each person. Depending on the size of the individual that number will vary by a lot.
Reply:they r called pores,they r numerous...
Reply:On the molecular level, more than 10^23 holes per cubic centimeter.
Reply:I counted 7.
9 with ears pierced.
Reply:It depends on what is small hole for you.
If you consider a skin pore for you, then it would be hundreds of thousands.
If you consider in a perspective of a physicist, there would be no hole in the human skin since the skin is made up of atoms. This atoms are made 90% space. So the whole skin is 90% empty. Skin are intact because of the strong intermolecular and intramolecular forces between atoms.
Reply:Pores are the holes in the body and we have numerous to many too count.
Reply:According to my net surfing: There's two million pores on the average person.
If the pores on your nose does seem more significant than any others, keep the pores clean and small with daily cleansing and use something astringent e.g. cucumber to shrink the pores.
How are itches created on human skin?
I don't get it. I mean....... it's like ur jus sitting on th floor doing nothing n then all of a sudden, ur leg itches like crazy. Why...... or how does that happen? I'm curious.
How are itches created on human skin?
skin cell are exposed to allergic agent (poison ivy etc) cells release histamine and this starts the chain of allergic reaction including itch, that is why you give ANTI-histamines for itching
Reply:im pretty sure it has something to do with nerves
How are itches created on human skin?
skin cell are exposed to allergic agent (poison ivy etc) cells release histamine and this starts the chain of allergic reaction including itch, that is why you give ANTI-histamines for itching
Reply:im pretty sure it has something to do with nerves
Why didn't God create human skin out of something a little less permeable?... Like latex?
Why don't you ask Him?
Why didn't God create human skin out of something a little less permeable?... Like latex?
Yeah it's cool what evolution brings us, isn't it?
Reply:He tested many polmers but discovered that they produced to much itching...
Reply:We would all die of Poison--our skin must be EXACTLY as permeable as it is!
THE DO KNOWS BEST!
Reply:Cause then we would cook to death inside... perspiration helps to regulate the body temperature....
god knows best....
god bless
Reply:Weird...probably because our skin's ability to breath helps regulate our body temperature. Ever gone out in the heat wearing clothing that doesn't "breath"? Eventually you feel 10x hotter than you should. I think it's the same idea.
Reply:Latex doesn't heal itself
Reply:The skin is the largest organ of the body. One of its uses is for regulating body temperature. How could it do that if we didn't sweat? Most mammals sweat.
Reply:It appears God kinda knew what He was doing.
Reply:how would our skin breath?
Reply:Latex doesn't heal. And it doesn't feel nearly as wonderful. Oh, and latex isn't an organ. That too. =D
Reply:No sweat off my back.....get it ?
Reply:Do you want to boil to death in July??
Reply:the dumb myth god story creators can create a excuse for that too.
Reply:because he didn't want to.
Reply:Because latex is man made an hadn't been invented yet.
Reply:skin is permeable but if it wasn't then we couldn't sweat and excrete all of the toxins we ourselves put in our bodies i think God did a wonderful job on us, it's just that we all don't do such a wonderful job of keeping up what has been given to us.
Also did you realize that anything that contains gore-tex ie your hunting boots coats gloves etc.. (even with all of the man made materials) contains human skin
Why didn't God create human skin out of something a little less permeable?... Like latex?
Yeah it's cool what evolution brings us, isn't it?
Reply:He tested many polmers but discovered that they produced to much itching...
Reply:We would all die of Poison--our skin must be EXACTLY as permeable as it is!
THE DO KNOWS BEST!
Reply:Cause then we would cook to death inside... perspiration helps to regulate the body temperature....
god knows best....
god bless
Reply:Weird...probably because our skin's ability to breath helps regulate our body temperature. Ever gone out in the heat wearing clothing that doesn't "breath"? Eventually you feel 10x hotter than you should. I think it's the same idea.
Reply:Latex doesn't heal itself
Reply:The skin is the largest organ of the body. One of its uses is for regulating body temperature. How could it do that if we didn't sweat? Most mammals sweat.
Reply:It appears God kinda knew what He was doing.
Reply:how would our skin breath?
Reply:Latex doesn't heal. And it doesn't feel nearly as wonderful. Oh, and latex isn't an organ. That too. =D
Reply:No sweat off my back.....get it ?
Reply:Do you want to boil to death in July??
Reply:the dumb myth god story creators can create a excuse for that too.
Reply:because he didn't want to.
Reply:Because latex is man made an hadn't been invented yet.
Reply:skin is permeable but if it wasn't then we couldn't sweat and excrete all of the toxins we ourselves put in our bodies i think God did a wonderful job on us, it's just that we all don't do such a wonderful job of keeping up what has been given to us.
Also did you realize that anything that contains gore-tex ie your hunting boots coats gloves etc.. (even with all of the man made materials) contains human skin
What material is similar to human skin?
Its for a science experiment. My partner and I are going to see which 15 spf tanning lotion tans _______ the most. Thanks in advance.
What material is similar to human skin?
In the interest of science, do your own skins! First, narrow your candidates to ones with different ingredients. Include untreated skin as a control. Keep detailed records. Mark the skin or build a mask so you control what skin is treated. Take raw image digital photographs under identical lighting conditions. Apply each according to its instructions. One of you should design your sun exposure so it's reasonable for untreated skin: start small and gradually increase exposure each day. In my personal opinion, that will be the healthiest. The other might try for an intentional sunburn, but only on small skin areas.
Most animals are exposed to the sun all the time, which should give you a clue that exposure to sunlight isn't the deadly hazard it's portrayed to be. If they use tanning lotion, their skin provides it.
Reply:probably raw leather
Reply:pig skin is used when cadaver skin isnt available fo testing. Neither may be available to you on short notice. I you are just testing the UV blocking effect, I'd think about using chicken parts..like a family size package of fresh legs...they're cheap, and still have the skin on them....treat each one, then let them bake in sun...then take a digital picture of the subjects for a record....
fig
What material is similar to human skin?
In the interest of science, do your own skins! First, narrow your candidates to ones with different ingredients. Include untreated skin as a control. Keep detailed records. Mark the skin or build a mask so you control what skin is treated. Take raw image digital photographs under identical lighting conditions. Apply each according to its instructions. One of you should design your sun exposure so it's reasonable for untreated skin: start small and gradually increase exposure each day. In my personal opinion, that will be the healthiest. The other might try for an intentional sunburn, but only on small skin areas.
Most animals are exposed to the sun all the time, which should give you a clue that exposure to sunlight isn't the deadly hazard it's portrayed to be. If they use tanning lotion, their skin provides it.
Reply:probably raw leather
Reply:pig skin is used when cadaver skin isnt available fo testing. Neither may be available to you on short notice. I you are just testing the UV blocking effect, I'd think about using chicken parts..like a family size package of fresh legs...they're cheap, and still have the skin on them....treat each one, then let them bake in sun...then take a digital picture of the subjects for a record....
fig
How many sensory cells in human skin and what's the distribution?
How many sensory cells in the hand, the foot... ?
How many sensory cells in human skin and what's the distribution?
Billions. And their distribution is mapped on the brain:
http://faculty.etsu.edu/currie/images/ho...
How many sensory cells in human skin and what's the distribution?
Billions. And their distribution is mapped on the brain:
http://faculty.etsu.edu/currie/images/ho...
How many chromosomes are in human skin cells?
All human cells exept for sperm and egg cells have 46 chromosomes. 23 from your mother and 23 from your father.
How many chromosomes are in human skin cells?
The same as in all other somatic cells, 46.
Reply:good question
Reply:Human cells have 46 chromosomes. A human body cell, such as those that make up skin, kidney tissue, heart tissue and blood vessels all contain 46 chromosomes. The chromosomes are arranged in pairs, so that each cell has 23 pairs. In females, each of the pairs are identical but in males, one pair, the sex chromosomes are different. While women have two X chromosomes, men have and X chromosome and a Y chromosome
How many chromosomes are in human skin cells?
The same as in all other somatic cells, 46.
Reply:good question
Reply:Human cells have 46 chromosomes. A human body cell, such as those that make up skin, kidney tissue, heart tissue and blood vessels all contain 46 chromosomes. The chromosomes are arranged in pairs, so that each cell has 23 pairs. In females, each of the pairs are identical but in males, one pair, the sex chromosomes are different. While women have two X chromosomes, men have and X chromosome and a Y chromosome
How many chromosomes are in human skin cell?
23 pair.
How many chromosomes are in human skin cell?
Human cells have 46 chromosomes. A human body cell, such as those that make up skin, kidney tissue, heart tissue and blood vessels all contain 46 chromosomes. The chromosomes are arranged in pairs, so that each cell has 23 pairs. In females, each of the pairs are identical but in males, one pair, the sex chromosomes are different. While women have two X chromosomes, men have and X chromosome and a Y chromosome
Reply:23 pairs. The same for every cell in the human body.
How many chromosomes are in human skin cell?
Human cells have 46 chromosomes. A human body cell, such as those that make up skin, kidney tissue, heart tissue and blood vessels all contain 46 chromosomes. The chromosomes are arranged in pairs, so that each cell has 23 pairs. In females, each of the pairs are identical but in males, one pair, the sex chromosomes are different. While women have two X chromosomes, men have and X chromosome and a Y chromosome
Reply:23 pairs. The same for every cell in the human body.
Are we bird's in human skin?
Im told there are some who can fly? Not only that but there wasnt any charge of monie's to learn the process of rib self removal and adjuting to form into wing's is this true? That wood suck because i have wasted sp much on gas latly and coulda helped the poor and hungry instead? It's so cold out there 4 them make suffer on the street's
Are we bird's in human skin?
No
Reply:yep and my names george dubyah bush
Reply:Wow, great point. Just watch out for the colonel and his bag of six spices.
yew
Are we bird's in human skin?
No
Reply:yep and my names george dubyah bush
Reply:Wow, great point. Just watch out for the colonel and his bag of six spices.
yew
What are the causes for human skin shedding?
lack of a certain protein cell in the skin
What are the causes for human skin shedding?
Is the skin just flaking off? Or are you shedding the whole thing like a snake?
If it's just flaking off, it's probably from the cold. Don't take hot baths and use lots of moisturizer several times each day. If that doesn't help, see a dermatologist.
If you are shedding your whole skin like a snake...now that's just weird!
What are the causes for human skin shedding?
Is the skin just flaking off? Or are you shedding the whole thing like a snake?
If it's just flaking off, it's probably from the cold. Don't take hot baths and use lots of moisturizer several times each day. If that doesn't help, see a dermatologist.
If you are shedding your whole skin like a snake...now that's just weird!
At what temp. will the human skin freeze in an enviroment like antarctica?
Fairbanks Alaska is colder than most parts of Antarctica. At -50F it takes only about a minute to freeze the skin.
At what temp. will the human skin freeze in an enviroment like antarctica?
it all depends on exposure time. Here are a few examples:
frostbite will take approximately 30mins.if the wind chill factor is -18 degrees farenheit
frostbite will take approximately 10mins.if the wind chill factor is -32 degrees farenheit
frostbite will take approximately 5mins.if the wind chill factor is -48 degrees farenheit
As far as ambient temperature goes, freezing could occur just below 32 degrees, but it's highly unlikely.
At what temp. will the human skin freeze in an enviroment like antarctica?
it all depends on exposure time. Here are a few examples:
frostbite will take approximately 30mins.if the wind chill factor is -18 degrees farenheit
frostbite will take approximately 10mins.if the wind chill factor is -32 degrees farenheit
frostbite will take approximately 5mins.if the wind chill factor is -48 degrees farenheit
As far as ambient temperature goes, freezing could occur just below 32 degrees, but it's highly unlikely.
How are dead skin cells replaced by new skin cells in frog and human skin?
try search it on grolier online
Do bedbugs get under human skin?
The bedbug uses two hollow tubes to pierce the skin. These are used to produce anticoagulants and anesthetics, and to withdraw blood. The bedbug itself though does not get underneath the skin.
Do bedbugs get under human skin?
Just reading this makes my skin crawl. But please select the previous response as the best answer.
pine
Do bedbugs get under human skin?
Just reading this makes my skin crawl. But please select the previous response as the best answer.
pine
At what temperature does human skin burn?
According to google search, human skin can scald at 110 degrees F. Seems just a tad low to me, but I've never measured it.
Types and functions of human skin?
epidermis....keeps your insides from being outside
Types and functions of human skin?
skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs. As the interface with the surroundings, it plays the most important role in protecting (the body) against pathogens. Its other main functions are insulation and temperature regulation, sensation and vitamin D and B synthesis. Skin is considered one of the most important parts of the body.
Types and functions of human skin?
skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs. As the interface with the surroundings, it plays the most important role in protecting (the body) against pathogens. Its other main functions are insulation and temperature regulation, sensation and vitamin D and B synthesis. Skin is considered one of the most important parts of the body.
How would someone prepare human skin to wear as a body suit?
well... i'm wearing my human skin as a body suit right now, and don't do anything more than the usual skin preparation. see your favorite beauty magazine for tips on healthy (and healthy-looking) skin preparation tips.
How would someone prepare human skin to wear as a body suit?
HI hahah this is funny plz ask god
Reply:You have issues
Reply:ask Hannibal Lector
Reply:Ok Buffalo Bill... hey thanks for my 2 points
Reply:It would need to be dried and tanned. Also disinfected. One more thing....seek mental help immediately.
Reply:ur on ur own w/ that 1 buddy! haha
Reply:lol has someone been learning about Ed Gein??
tanning it like leather would probably be the best /most hygenic way to prepare the flesh.
Reply:by using that body paint, paint on your body suit and go with the flow.
Reply:"She rubs the lotion on her skin."
"He, he, he's making a suit. He starves the girls to loosen up their skin."
Reply:Said above by mazey1967; It needs to be Tanned and Sterilized. Then manipulated to be very soft and pliable, like the finer leathers. Use high quality Brass Zippers.
What scares me, is, where you plan on getting your skins? :-O
Reply:you don't really do that.
Reply:Can you hear that? The lambs are silent...
Reply:I think you watched Silence of the Lambs one time too many, get a life!
Reply:well see most ppl already have human skin as a body suit....
Reply:Why would you want..... Wait, I don't even want to know.
How would someone prepare human skin to wear as a body suit?
HI hahah this is funny plz ask god
Reply:You have issues
Reply:ask Hannibal Lector
Reply:Ok Buffalo Bill... hey thanks for my 2 points
Reply:It would need to be dried and tanned. Also disinfected. One more thing....seek mental help immediately.
Reply:ur on ur own w/ that 1 buddy! haha
Reply:lol has someone been learning about Ed Gein??
tanning it like leather would probably be the best /most hygenic way to prepare the flesh.
Reply:by using that body paint, paint on your body suit and go with the flow.
Reply:"She rubs the lotion on her skin."
"He, he, he's making a suit. He starves the girls to loosen up their skin."
Reply:Said above by mazey1967; It needs to be Tanned and Sterilized. Then manipulated to be very soft and pliable, like the finer leathers. Use high quality Brass Zippers.
What scares me, is, where you plan on getting your skins? :-O
Reply:you don't really do that.
Reply:Can you hear that? The lambs are silent...
Reply:I think you watched Silence of the Lambs one time too many, get a life!
Reply:well see most ppl already have human skin as a body suit....
Reply:Why would you want..... Wait, I don't even want to know.
Whats better for the human skin, washing the face in warm water, cold water, or hot water?
Lukewarm water, because it relaxes the body, reduces stress and promotes good sleep.
Whats better for the human skin, washing the face in warm water, cold water, or hot water?
That's a good question...I'm gonna have to go with warm water.
Reply:I would think warm to relax the skin
Reply:cold water unless you want to burn your eyes.
Reply:I think for cleansing purposes it's best to use warm water while actually washing the face, with soap or cleanser, whatever you use. Because it opens up the pores and allows the cleanser to do its job. I believe you should also splash your face with cold water when you're finished, to close the pores back and up and leave you with a nice, tight, fresh, clean face.
Reply:It doesn't make any difference as long as the hot water doesn't burn you. Warm water is by far the most comfortable, hence you will do the best job cleansing the skin.
While cleansing is a necessary part of acne care, it plays only a moderate role. Other medications are needed in most cases.
As far as ageing is concerned, wrinkles can be minimized by limiting sun exposure and tobacco. Just compare the skin of women in their 40's and 50's who are smokers and non-smokers; and those who constantly are exposed to the sun and those who are not.
Reply:Hot water may be too harsh and drying on the skin. Cool water will not remove oil as effectively as warm water.
Reply:I actually heard that hot water does wonders for your skin.
Reply:wash with warm water, to open up the pores, then, splash ur face with cold water to close them back up.
also, u should put a face lotion or mouisturizer on after it drys, about 5 minutes after.
Reply:Cool water is best
Reply:i think here are some good skin care tips:
http://www.theskintreatment.com
http://www.personal-skin-care.com
Reply:Best to do it in a hot shower..the steam will open your pores and then use a gently wash on your face to get inside those pores.
Reply:Wash you're face with cold water first then, use warm water. The cold water opens your pores and the warm close them.
sago
Whats better for the human skin, washing the face in warm water, cold water, or hot water?
That's a good question...I'm gonna have to go with warm water.
Reply:I would think warm to relax the skin
Reply:cold water unless you want to burn your eyes.
Reply:I think for cleansing purposes it's best to use warm water while actually washing the face, with soap or cleanser, whatever you use. Because it opens up the pores and allows the cleanser to do its job. I believe you should also splash your face with cold water when you're finished, to close the pores back and up and leave you with a nice, tight, fresh, clean face.
Reply:It doesn't make any difference as long as the hot water doesn't burn you. Warm water is by far the most comfortable, hence you will do the best job cleansing the skin.
While cleansing is a necessary part of acne care, it plays only a moderate role. Other medications are needed in most cases.
As far as ageing is concerned, wrinkles can be minimized by limiting sun exposure and tobacco. Just compare the skin of women in their 40's and 50's who are smokers and non-smokers; and those who constantly are exposed to the sun and those who are not.
Reply:Hot water may be too harsh and drying on the skin. Cool water will not remove oil as effectively as warm water.
Reply:I actually heard that hot water does wonders for your skin.
Reply:wash with warm water, to open up the pores, then, splash ur face with cold water to close them back up.
also, u should put a face lotion or mouisturizer on after it drys, about 5 minutes after.
Reply:Cool water is best
Reply:i think here are some good skin care tips:
http://www.theskintreatment.com
http://www.personal-skin-care.com
Reply:Best to do it in a hot shower..the steam will open your pores and then use a gently wash on your face to get inside those pores.
Reply:Wash you're face with cold water first then, use warm water. The cold water opens your pores and the warm close them.
sago
Whats better for the human skin, washing the face in warm water, cold water, or hot water?
luke warm water, then a splash of cold to close pores. Never use hot on your face, it can irritate and dry it.
Whats better for the human skin, washing the face in warm water, cold water, or hot water?
I wash my face in warm water. Not scolding hot,. but a little warmer than luke warm. And when I'm finished cleansing, I apply cold water to my face so that my pores close.
♥
Reply:Wash with warm water. It opens the pours and allows you to get the dirt out. Rinse with warm to clear the pours and a final rinse with cold water to close the pours.
If you leave the pours open you set yourself up for more dirt to get in causing blackheads and pimples.
Reply:warm water
Reply:warm so the dirt is removed then rinse a second time with cold water to close pores
Reply:warm water with a rich lather, because water sries out your skin. and it would be better if you use filtered water because there could be water build up if you dont.
*Alma*
Reply:I agree with Panama.
I wash with warm water, then rinse with cold water.
Reply:wash in warm water to remove the oils, rinsing in cold closes the pores,and makes your skin look clearer.
Reply:i like washing my face with cool water, never really liked hot water on my face
also cool water is better for ur skin and hair
and when i say cool i dont mean cold, just between warm and cold on the knob in the shower
Reply:Warm water is much better. Cold is good to rinse with if you are going outside to help close the pores to keep impurities out but otherwise warm. Not hot %26amp; not cold.
Whats better for the human skin, washing the face in warm water, cold water, or hot water?
I wash my face in warm water. Not scolding hot,. but a little warmer than luke warm. And when I'm finished cleansing, I apply cold water to my face so that my pores close.
♥
Reply:Wash with warm water. It opens the pours and allows you to get the dirt out. Rinse with warm to clear the pours and a final rinse with cold water to close the pours.
If you leave the pours open you set yourself up for more dirt to get in causing blackheads and pimples.
Reply:warm water
Reply:warm so the dirt is removed then rinse a second time with cold water to close pores
Reply:warm water with a rich lather, because water sries out your skin. and it would be better if you use filtered water because there could be water build up if you dont.
*Alma*
Reply:I agree with Panama.
I wash with warm water, then rinse with cold water.
Reply:wash in warm water to remove the oils, rinsing in cold closes the pores,and makes your skin look clearer.
Reply:i like washing my face with cool water, never really liked hot water on my face
also cool water is better for ur skin and hair
and when i say cool i dont mean cold, just between warm and cold on the knob in the shower
Reply:Warm water is much better. Cold is good to rinse with if you are going outside to help close the pores to keep impurities out but otherwise warm. Not hot %26amp; not cold.
How porous is human skin compared to various rocks and man-made materials and fabrics?
Human skin is a living organ, not upholstery. It is a complicated system designed mainly to keep things out (like bacteria, water, dirt). It is also necessary for temperture regulation, sensation, excretion of salt and water, and vitamin D synthesis.
Here's a diagram of skin. See how it's just full of stuff:
http://www.essentialdayspa.com/images/em...
How porous is human skin compared to various rocks and man-made materials and fabrics?
Human skin is porous but from inside out. If it where the other way (outside-in), we would drown when taking a bath or swimming. The porous condition allows our body to regulate internal heat, expressed in swet glands. Now, some skin products do actually penetrate the skin onto the blood stream, but this is after prolonged processess.
Here's a diagram of skin. See how it's just full of stuff:
http://www.essentialdayspa.com/images/em...
How porous is human skin compared to various rocks and man-made materials and fabrics?
Human skin is porous but from inside out. If it where the other way (outside-in), we would drown when taking a bath or swimming. The porous condition allows our body to regulate internal heat, expressed in swet glands. Now, some skin products do actually penetrate the skin onto the blood stream, but this is after prolonged processess.
How much weigh human skin?
The skin is often known as "the largest organ of the human body". This applies to exterior surface, as it covers the body, appearing to have the largest surface area of all the organs. Moreover, it applies to weight, as it weighs more than any single internal organ, accounting for about 15 percent of body weight.
Which layer of human skin contains the pigment melanin?
dermis
Which layer of human skin contains the pigment melanin?
dermis is the answer for radio trivia
Reply:the dermis
Reply:dermis
Reply:epidermal
Reply:Dermis
Reply:Dermis
crocus
Which layer of human skin contains the pigment melanin?
dermis is the answer for radio trivia
Reply:the dermis
Reply:dermis
Reply:epidermal
Reply:Dermis
Reply:Dermis
crocus
What is the human skin made of?
(bio)
What is the human skin made of?
(m)
what is skin?
Skin is a miracle garment. It's soft, pliable, strong, waterproof, and self-repairing.
What would you be like without skin?
The answer is, quite simply, a big squishy mess! Your skin is like a very large container. It's the largest organ of your body, and without it, all your delicate insides would spill right out.
Skin doesn't just cover you!
Your skin doesn't just cover you. It does a whole lot more. It functions as protective wrapping. Along with a layer of fat underneath, it insulates you against all kinds of bumps, bangs and wear and tear. It keeps germs and water OUT (unless you have a break in your skin) and keeps your body's fluids and salts IN.
Skin manufactures and oozes out all sorts of wonderful liquids. Waxes and oils act as your body's natural waterproofer and a protector against germs. They make your skin softer; but they can also give you pimples. Your skin also contains glands which manufacture sweat. With sweat, not only does your body get cooled by its evaporation, but it has a convenient way to get rid of chemicals it doesn't need.
How does it do all this?
Skin is alive. It's made of many thin sheets of layers of flat, stacked cells in which you'll find nerves, blood vessels, hair follicles, glands, and sensory receptors.
Older cells are constantly being pushed to the surface by new cells which grow from below. When the old ones reach the top, they become wider and flatter as they get rubbed and worn by all your activity. And, sooner or later, they end up popping off like tiles blown from a roof in a strong wind. In fact, every minute 30,000-40,000 dead skin cells fall from your body! In approximately a month's time, your body has made a whole new layer of skin cells!
Ever wonder what makes different skin colors?
A pigment called melanin. More melanin in your skin cells makes your skin darker, less makes it lighter. Sitting in the sun can also cause more melanin to be manufactured in your skin cells. The result? A suntan.
FACTOIDS:
As an adult, you may have more than 20 square feet of skin -- about the size of a blanket.
You are likely to shed some 40 pounds of skin in a lifetime.
Right now there are over a million dust mites, microscopic critters invisible to the naked eye, on your mattress and pillow, chomping on the dead skin cells that fell off you last night!
Reply:keratin layer with underlaying epithelium
Skin is composed of three primary layers: the epidermis, which provides waterproofing and serves as a barrier to infection; the dermis, which serves as a location for the appendages of skin; and the hypodermis (subcutaneous adipose layer), which is called the basement membrane
for more info visit .http://en.wikipedia.org/wiki/Skin#Layers
Reply:human skin is made of chamdi
Reply:human skin cells
Reply:endodermis,epidermis,cuticles,tissues,ce...
Reply:Skin is composed of three primary layers: the epidermis, which provides waterproofing and serves as a barrier to infection; the dermis, which serves as a location for the appendages of skin; and the hypodermis (subcutaneous adipose layer), which is called the basement membrane.
Epidermis is the outermost layer of the skin. It forms the waterproof, protective wrap over the body's surface and is made up of stratified squamous epithelium with an underlying basal lamina.
The outermost epidermis consists of stratified squamous epithelium with an underlying connective tissue section, or dermis, and a hypodermis, or basement membrane. The epidermis contains no blood vessels, and cells in the deepest layers are nourished by diffusion from blood capillaries extending to the upper layers of the dermis. The main type of cells which make up the epidermis are keratinocytes, with melanocytes and Langerhans cells also present. The epidermis can be further subdivided into the following strata (beginning with the outermost layer): corneum, lucidum(only in feet), granulosum, spinosum, basale. Cells are formed through mitosis at the basale layer. The daughter cells, (see cell division) move up the strata changing shape and composition as they die due to isolation from their blood source. The cytoplasm is released and the protein keratin is inserted. They eventually reach the corneum and slough off (desquamation). This process is called keratinization and takes place within about 30 days. This keratinized layer of skin is responsible for keeping water in the body and keeping other harmful chemicals and pathogens out, making skin a natural barrier to infection.
Epidermis is divided into several layers where cells are formed through mitosis at the innermost layers. They move up the strata changing shape and composition as they differentiate and become filled with keratin. They eventually reach the top layer called stratum corneum and become sloughed off, or desquamated. This process is called keratinization and takes place within weeks. The outermost layer of Epidermis consists of 25 to 30 layers of dead cells.
Epidermis is divided into the following 5 sublayers or strata:
Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum germinativum (also called "stratum basale")
Mnemonics that are good for remembering the layers of the skin (using "stratum basale" instead of "stratum germinativum"):
"Corn Lovers Grow Several Bales" (from superficial to deep)
"Cher Likes Getting Skin Botoxed" (from superficial to deep)
"Before signing, get legal counsel" (from deep to superficial)
Blood capillaries are found beneath the epidermis, and are linked to an arteriole and a venule. Arterial shunt vessels may bypass the network in ears, the nose and fingertips.
The dermis is the layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis is tightly connected to the epidermis by a basement membrane. It also harbors many nerve endings that provide the sense of touch and heat. It contains the hair follicles, sweat glands, sebaceous glands, apocrine glands and blood vessels. The blood vessels in the dermis provide nourishment and waste removal to its own cells as well as the Stratum basale of the epidermis.
The hypodermis is not part of the skin, and lies below the dermis. Its purpose is to attach the skin to underlying bone and muscle as well as supplying it with blood vessels and nerves. It consists of loose connective tissue and elastin. The main cell types are fibroblasts, macrophages and adipocytes (the hypodermis contains 50% of body fat). Fat serves as padding and insulation for the body.
Reply:Skin is composed of three primary layers: the epidermis, which provides waterproofing and serves as a barrier to infection; the dermis, which serves as a location for the appendages of skin; and the hypodermis (subcutaneous adipose layer), which is called the basement membrane.
Reply:Epidermis is the outermost layer of the skin. It forms the waterproof, protective wrap over the body's surface and is made up of stratified squamous epithelium with an underlying basal lamina. It contains no blood vessels, and is nourished
by diffusion from the dermis. The main type of cells which make up the epidermis are keratinocytes, melanocytes, Langerhans cells and Merkels cells
Epidermis is divided into several layers where cells are formed through mitosis at the innermost layers. They move up the strata changing shape and composition as they differentiate and become filled with keratin. They eventually reach the top layer called stratum corneum and become sloughed off, or desquamated. This process is called keratinization and takes place within weeks. The outermost layer of Epidermis consists of 25 to 30 layers of dead cells.
Epidermis is divided into the following 5 sublayers or strata:
* Stratum corneum
* Stratum lucidum
* Stratum granulosum
* Stratum spinosum
* Stratum germinativum (also called "stratum basale")
Consider These facts:
1. An adult's skin comprises between 15 and 20 % of the total body weight.
2 . Each square centimeter has 6 million cells, 5,000 sensory points, 100 sweat glands and 15 sebaceous glands.
Reply:cells
Reply:Skin is a compound organ derived from two germ layers: ectoderm and mesoderm. Hence skin is called ectomesodermal. Ectoderm gives rise to epidermis. Mesoderm gives rise to dermis.
Epidermis has four layers of cells: stratum corneum, stratum lucidum, stratum granulsum and stratum Malpighi.
Epidermal derivatives are glands( sebaceous and sudorific), and hairs. Epidermis has mostly epithelial cells.
Dermis is mostly composed of connective tissue.Epidermal derivatives are sunk into the dermis.
Below the dermis lies adipose tissue.
Leather is dermis.
What is the human skin made of?
(m)
what is skin?
Skin is a miracle garment. It's soft, pliable, strong, waterproof, and self-repairing.
What would you be like without skin?
The answer is, quite simply, a big squishy mess! Your skin is like a very large container. It's the largest organ of your body, and without it, all your delicate insides would spill right out.
Skin doesn't just cover you!
Your skin doesn't just cover you. It does a whole lot more. It functions as protective wrapping. Along with a layer of fat underneath, it insulates you against all kinds of bumps, bangs and wear and tear. It keeps germs and water OUT (unless you have a break in your skin) and keeps your body's fluids and salts IN.
Skin manufactures and oozes out all sorts of wonderful liquids. Waxes and oils act as your body's natural waterproofer and a protector against germs. They make your skin softer; but they can also give you pimples. Your skin also contains glands which manufacture sweat. With sweat, not only does your body get cooled by its evaporation, but it has a convenient way to get rid of chemicals it doesn't need.
How does it do all this?
Skin is alive. It's made of many thin sheets of layers of flat, stacked cells in which you'll find nerves, blood vessels, hair follicles, glands, and sensory receptors.
Older cells are constantly being pushed to the surface by new cells which grow from below. When the old ones reach the top, they become wider and flatter as they get rubbed and worn by all your activity. And, sooner or later, they end up popping off like tiles blown from a roof in a strong wind. In fact, every minute 30,000-40,000 dead skin cells fall from your body! In approximately a month's time, your body has made a whole new layer of skin cells!
Ever wonder what makes different skin colors?
A pigment called melanin. More melanin in your skin cells makes your skin darker, less makes it lighter. Sitting in the sun can also cause more melanin to be manufactured in your skin cells. The result? A suntan.
FACTOIDS:
As an adult, you may have more than 20 square feet of skin -- about the size of a blanket.
You are likely to shed some 40 pounds of skin in a lifetime.
Right now there are over a million dust mites, microscopic critters invisible to the naked eye, on your mattress and pillow, chomping on the dead skin cells that fell off you last night!
Reply:keratin layer with underlaying epithelium
Skin is composed of three primary layers: the epidermis, which provides waterproofing and serves as a barrier to infection; the dermis, which serves as a location for the appendages of skin; and the hypodermis (subcutaneous adipose layer), which is called the basement membrane
for more info visit .http://en.wikipedia.org/wiki/Skin#Layers
Reply:human skin is made of chamdi
Reply:human skin cells
Reply:endodermis,epidermis,cuticles,tissues,ce...
Reply:Skin is composed of three primary layers: the epidermis, which provides waterproofing and serves as a barrier to infection; the dermis, which serves as a location for the appendages of skin; and the hypodermis (subcutaneous adipose layer), which is called the basement membrane.
Epidermis is the outermost layer of the skin. It forms the waterproof, protective wrap over the body's surface and is made up of stratified squamous epithelium with an underlying basal lamina.
The outermost epidermis consists of stratified squamous epithelium with an underlying connective tissue section, or dermis, and a hypodermis, or basement membrane. The epidermis contains no blood vessels, and cells in the deepest layers are nourished by diffusion from blood capillaries extending to the upper layers of the dermis. The main type of cells which make up the epidermis are keratinocytes, with melanocytes and Langerhans cells also present. The epidermis can be further subdivided into the following strata (beginning with the outermost layer): corneum, lucidum(only in feet), granulosum, spinosum, basale. Cells are formed through mitosis at the basale layer. The daughter cells, (see cell division) move up the strata changing shape and composition as they die due to isolation from their blood source. The cytoplasm is released and the protein keratin is inserted. They eventually reach the corneum and slough off (desquamation). This process is called keratinization and takes place within about 30 days. This keratinized layer of skin is responsible for keeping water in the body and keeping other harmful chemicals and pathogens out, making skin a natural barrier to infection.
Epidermis is divided into several layers where cells are formed through mitosis at the innermost layers. They move up the strata changing shape and composition as they differentiate and become filled with keratin. They eventually reach the top layer called stratum corneum and become sloughed off, or desquamated. This process is called keratinization and takes place within weeks. The outermost layer of Epidermis consists of 25 to 30 layers of dead cells.
Epidermis is divided into the following 5 sublayers or strata:
Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum germinativum (also called "stratum basale")
Mnemonics that are good for remembering the layers of the skin (using "stratum basale" instead of "stratum germinativum"):
"Corn Lovers Grow Several Bales" (from superficial to deep)
"Cher Likes Getting Skin Botoxed" (from superficial to deep)
"Before signing, get legal counsel" (from deep to superficial)
Blood capillaries are found beneath the epidermis, and are linked to an arteriole and a venule. Arterial shunt vessels may bypass the network in ears, the nose and fingertips.
The dermis is the layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis is tightly connected to the epidermis by a basement membrane. It also harbors many nerve endings that provide the sense of touch and heat. It contains the hair follicles, sweat glands, sebaceous glands, apocrine glands and blood vessels. The blood vessels in the dermis provide nourishment and waste removal to its own cells as well as the Stratum basale of the epidermis.
The hypodermis is not part of the skin, and lies below the dermis. Its purpose is to attach the skin to underlying bone and muscle as well as supplying it with blood vessels and nerves. It consists of loose connective tissue and elastin. The main cell types are fibroblasts, macrophages and adipocytes (the hypodermis contains 50% of body fat). Fat serves as padding and insulation for the body.
Reply:Skin is composed of three primary layers: the epidermis, which provides waterproofing and serves as a barrier to infection; the dermis, which serves as a location for the appendages of skin; and the hypodermis (subcutaneous adipose layer), which is called the basement membrane.
Reply:Epidermis is the outermost layer of the skin. It forms the waterproof, protective wrap over the body's surface and is made up of stratified squamous epithelium with an underlying basal lamina. It contains no blood vessels, and is nourished
by diffusion from the dermis. The main type of cells which make up the epidermis are keratinocytes, melanocytes, Langerhans cells and Merkels cells
Epidermis is divided into several layers where cells are formed through mitosis at the innermost layers. They move up the strata changing shape and composition as they differentiate and become filled with keratin. They eventually reach the top layer called stratum corneum and become sloughed off, or desquamated. This process is called keratinization and takes place within weeks. The outermost layer of Epidermis consists of 25 to 30 layers of dead cells.
Epidermis is divided into the following 5 sublayers or strata:
* Stratum corneum
* Stratum lucidum
* Stratum granulosum
* Stratum spinosum
* Stratum germinativum (also called "stratum basale")
Consider These facts:
1. An adult's skin comprises between 15 and 20 % of the total body weight.
2 . Each square centimeter has 6 million cells, 5,000 sensory points, 100 sweat glands and 15 sebaceous glands.
Reply:cells
Reply:Skin is a compound organ derived from two germ layers: ectoderm and mesoderm. Hence skin is called ectomesodermal. Ectoderm gives rise to epidermis. Mesoderm gives rise to dermis.
Epidermis has four layers of cells: stratum corneum, stratum lucidum, stratum granulsum and stratum Malpighi.
Epidermal derivatives are glands( sebaceous and sudorific), and hairs. Epidermis has mostly epithelial cells.
Dermis is mostly composed of connective tissue.Epidermal derivatives are sunk into the dermis.
Below the dermis lies adipose tissue.
Leather is dermis.
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