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A nail is a horn-like envelope covering the dorsal aspect of the terminal phalanges of fingers and toes in humans, most non-human primates, and a few other mammals. Nails are similar to claws in other animals. Fingernails and toenails are made of a tough protein called keratin, as are animals' hooves and horns. The mammalian nail, claw, and hoof are all examples of unguis [plural ungues].

Human anatomy

The nail consists of the nail plate, the nail matrix and the nail bed below

it, and the grooves surrounding it.

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12y ago
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Q: What is the definition of nail body?
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