GENERAL HISTOLOGY

Detailed explanation-1: -The part that we call the nail is technically known as the “nail plate .” The nail plate is mostly made of a hard substance called keratin. It is about half a millimeter thick and slightly curved.

Detailed explanation-2: -Most of us do know that nails are made of a tough, dead substance called keratin, the same material that makes up hair. But nails actually start out as living cells. Behind the cuticles on fingers and toes, just beneath the skin, a structure called the “root” churns out living cells that go on to form the nail.

Detailed explanation-3: -Hair and nails are made of keratin, a tough protein. Keratin is similar in toughness to chitin, the carbohydrate found in the exoskeleton of arthropods. Nails act as protective plates over the fingertips and toes.