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15 terms

MILADY 2012 CHAPTER 9

NAIL STRUCTURE AND GROWTH
STUDY
PLAY
bed epithelium
thin layer of tissue that attaches the nail plate and the nail bed.
eponychium
living skin at the base of the natural nail plate that covers the matrix area.
free edge
part of the nail plate that extends over the tip of the finger or toe.
hyponychium
slightly thickened layer of skin that lies between the fingertip and free edge of the natural nail plate.
ligament
tough band of fibrous tissue that connects bones or holds an organ in place.
lunula
visible part of the matrix that extends from underneath the living skin; it is the whitish, half moon shape at the base of the nail.
matrix
area where the nail plate cells are formed; this area is composed of --------- cells that produce the nail plate.
nail bed
portion of the living skin that supports the nail plate as it grows toward the free edge.
nail cuticle
dead, colorless tissue attached to the natural nail plate.
nail folds
folds of the normal skin that surround the natural nail plate.
nail grooves
slits or furrows on the sides of the sidewall.
nail plate
hardened keratin plate that sits on and covers the natural nail bed. It is the most visible and functional part of the natural nail unit.
natural nail
the hard protective plate is composed mainly of keratin, the same fibrous protein found in the skin and har. The keratin in ------------ is harder than the keratin in skin and hair (onyx).
natural nail unit
composed of several major parts of the fingernail including the nail plate, nail bed, matrix, cuticle, eponychium, hyponychium, specialized ligaments, and nail fold.Together all these parts form the ------.
sidewall
the fold of skin overlapping the side of the nail (lateral nail fold)