4/1/2024 0 Comments Nails into the dead 2![]() The small-celled and relatively bloodless tissue near the base of the nail forms a white, crescent-shaped spot called the lunula, or moon. Otherwise, growth from root to tip is achieved in about four months. If the root is destroyed, the nail ceases to grow. ![]() ![]() The hard material in nail cells is the tough protein material, keratin. In humans and other mammals, the skin operates a complex organ of numerous structures (sometimes called the integumentary system) serving vital protective and metabolic functions. The flexible tissue (integument) enclosing the body of vertebrate animals. The nail consists of dead cells pushed outward by dividing cells in the root, a fold of epidermis at the base of the nail (see skin skin, Nail, in anatomy, the horny outgrowth shielding the tip of the finger and the toe in humans and most other primates.
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