Skin grows in step with the rest of your body, and although it constantly wears away, it is also replacing itself all the time. Like hair and nails, skin helps to protect your body from the out side world. It can do this because its surface is made of dead cells. These are very tough, and they from a barrier that shields the living cells underneath. Like the surface of skin, most of each hair is also made of dead cells.
Under the surface
Each part of your body has a different type of skin. For example, the skin on the back of your arm is covered with lots of hairs, although they may be too small for you to see. The skin on the palms of your hands and the inside of your fingers has no hair at all, but it does have lots of tiny ridges and invisible openings called sweat glands.
Tag :skin
Tag :hair
Tag :nails
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment