Functions of nails

Nails, like hair, skin and appendages are performed primarily protective function. Nails are a dense horny plates of lamellar structure at the rear surface of the ends of toes and hands. They are located in the nail bed and protected from mechanical damage to limit phalanges of fingers, as well as provide for the implementation and the press and prehensile action.

The front edge of nail plate is free, but the side and rear edges of surrounding skin fold. At the nail plate, hang around the top of the skin folds and the nail is called a roller, which serves a protective function, preventing bacteria and alien bodies to penetrate to the nail rostkovoy area. Region roller is a dead cell. Vysyhaya and otslaivayas, this region gives rise zausentsam.