Anatomy & SciencesQuestion 290 of 484

New nail plate is produced in which part of the nail unit?

a.The matrix, under the lunula and proximal nail fold
b.The free edge
c.The hyponychium
d.The eponychium

Explanation

The matrix is the only living, growth-producing portion of the nail unit. Damage there can permanently alter the nail. The free edge, hyponychium, and eponychium are not where new plate is created.

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