Nail Plate
Nail plate can refer to: * Nail (anatomy) A nail is a protective plate characteristically found at the tip of the digit (anatomy), digits (fingers and toes) of all primates, corresponding to the claws in other tetrapod animals. Fingernails and toenails are made of a tough rigid protein ..., a keratin plate at the end of fingers and toes * Nail-header, a tool for working heads onto metal nails {{Disambiguation ...
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Nail (anatomy)
A nail is a protective plate characteristically found at the tip of the digit (anatomy), digits (fingers and toes) of all primates, corresponding to the claws in other tetrapod animals. Fingernails and toenails are made of a tough rigid protein called alpha-keratin, a polymer also found in the claws, hooves, and horn (anatomy), horns of vertebrates. Structure The nail consists of the nail plate, the nail matrix and the nail bed below it, and the grooves surrounding it. Parts of the nail The nail matrix is the active Tissue (biology), tissue (or Germ layer, germinal Matrix (biology), matrix) that generates cells. The cells harden as they move outward from the nail root to the nail plate. The nail matrix is also known as the ''matrix unguis'', keratogenous membrane, or onychostroma. It is the part of the nail bed that is beneath the nail and contains nerves, lymph, and blood vessels. The matrix produces cells that become the nail plate. The width and thickness of the nail p ...
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