Thursday, September 20, 2007

What is hair? How is it made? Where does it come from?

Hair starts growing from a bulb which is lodged just under the skin. The beginning of a hair is made up of cells, which are bulging with keratin. The cells lengthen and then die, leaving behind protein bundles.

..Yeah, Yeah....Blah..blah blahhhhh...but Where does it come from?

Hair Comes From Where?
Whether hair is growing out of your head, arm, or ankle, it all rises out of the skin in the same way. It starts at the hair root, a place beneath the skin where cells band together to form keratin (the protein that hair is made of). The root is inside a follicle (say: fah-lih-kul), which is like a small tube in the skin.
As the hair begins to grow, it pushes up from the root and out of the follicle, through the
skin where it can be seen. Tiny blood vessels at the base of every follicle feed the hair root to keep it growing. But once the hair is at the skin's surface, the cells within the strand of hair aren't alive anymore. The hair you see on every part of your body contains dead cells. That's why it doesn't cause pain when someone cuts your hair with scissors!
Nearly every hair follicle is attached to a sebaceous (say: sih-bay-shus) gland, which is sometimes called an oil gland. These sebaceous glands produce oil.

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