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20 terms

chapter 8 nail structure and growth

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onyx
the technical term for the nail is
specialized ligaments, nail folds
the nail unit consists of several basic parts which are the nail bed, nail plate, cuticle, eponychium, hyponychium, and
nail plate
the visible portion of the nail that rests upon, and is attached to, the nail bed is called the:
1/10" per month
the average rate of growth of fingernails in normal adults is
eponychium
the living skin at the base of the nail plate covering the matrix area is called the
nail folds
the folds of normal skin that surround the nail plate are the
nail bed
the blood vessels that provide nourishment for growth of the nail are found in the
free edge
the end portion of the nail plate that reaches over the fingertip is called the
matrix
the nail body or nail plate extends from the ________ to the free edge
eponychium
the extension of the cuticle at the base of the nail body which partly overlaps the lunula is called the
4 to 6
if a nail is lost through injury, it will replace only as long as the matrix remains healthy. Replacement normally takes about ______ months.
bed epithelium
the thin layer of tissue that attaches the nail bed to the nail plate is the
100
the nail plate is constructed of how many layers of nail cells?
15% to 25%
the water content of the nail is between:
flexibility
the water content of a nail directly affects the nail's
the middle finger
which nail grows the fastest?
the thumb
which nail grows the slowest?
8 to 12 months
if a toenail is lost through injury, how long will it take for replacement?
cuticle
the dead tissue that tightly adheres to the natural nail plate is the
ligaments
the tough bank of fibrous tissue that connects bones or holds an organ in place are: