ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
matrix
area where the nail plate cells are formed; composed of matrix cells that produce the
nail plate
proximal nail fold
abbreviated PNF; entire flap of skin covering the matrix, extending from the edge of the
visible nail plate to the first joint of the finger or toe
nail groove
slit or furrow on the sides of the nail
lunula
visible part of the matrix that extends from underneath the living skin; whitish half-moon
shape at the base of the nail
nail bed
portion of living skin that supports the nail plate as it grows toward the free edge
perionychium
collectively; the nail bed (or sterile matrix), nail fold, eponychium, paronychium, and
hyponychium
lateral nail fold
also known as the sidewall; folds of skin that line the sides of the nail plate
bed epithelium