Nail matrix

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Nail matrix
Blausen 0406 FingerNailAnatomy.png
Latin matrix unguis
Code TH H3.
TA A16.0.01.002
FMA 60128
Anatomical terminology

The nail matrix is the formative layer of cells at the base of the fingernail or toenail. This tissue consists of rapidly dividing skin cells that soon fill with the protein keratin. The matrix of finger nails consists of the most rapidly dividing skin cells in the body, which grow four times faster than toenails at a rate of about 3 mm a month.

A. Nail plate; B. lunula; C. root; D. sinus; E. matrix; F. nail bed; G. hyponychium; H. free margin.

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