How the nails is grow, and what is the use of these nails?
Answers
Answer:
Nails start in the nail root, hidden under the cuticle. When cells at the root of the nail grow, the new nail cells push out the old nail cells. These old cells flatten and harden, thanks to keratin, a protein made by these cells. The newly formed nail then slides along the nail bed, the flat surface under your nails.
A nail consists of many different parts. The visible part of the nail is called nail plate. Nail plate lies on the nail bed. Matrix is the area where nail growth originates. It lies below the skin. Matrix has specialized cells which keep dividing and creating nail cells. The nail cells grow and produce a hard protein called keratin. Then, these keratin filled cells are pushed forward as more new cells are formed behind them. Eventually, the keratin filled cells die and flatten to form the nail plate. The hard keratin in these dead cells gives strength to the nail and makes it hard.
Use of nails?
Nails protect our finger tips. Moreover, by observing the condition of our nails, doctors can get clues about our overall health.
