What are nails?
A nail is produced by living skin cells on the finger. A nail consists of several parts, including the nail plate (the visible part of the nail), the nail bed (the skin under the nail plate), the cuticle (the tissue that overlaps the plate and borders the base of the nail). nail), folds of the nail (the folds of the skin that frame and support the nail on three sides), the lunula (the whitish half moon at the base of the nail) and the matrix (the hidden part of the nail unit). nail under the cuticle).
The nails grow from the womb. The nails are composed largely of keratin, a hardened protein (which is also found in the skin and hair). As new cells grow in the matrix, the older cells are expelled, compact and acquire the hardened and hardened familiar form of the nail.
The average growth rate of the nails is 0.1 mm per day (or 1 centimeter in 100 days). The exact rate of nail growth depends on numerous factors including the age and sex of the individual and the time of year. Nails usually grow faster in young people, in men and in summer.
The nails grow faster than the toenails. The nails of the right hand of a right person grow faster than those of his left hand, and vice versa.
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