Chapter 9 - Nail structure and growth Flashcards
The natural nail is part of what system
Integumentary
The natural nail is composed mainly of a hard, fiber shaped blank
Protein
Which statement is true of the nail plate
It is more porous than normal skin of equal thickness
As it grows, the blank slides across the nail bed
nail plate
The nail plate is formed by the
Matrix cells
What may appear to be one solid piece but is actually constructed of about 100 layers of nails cells?
Nail plate
The part of the nail plate that extends over the tip of the finger or toe is called the
.Free edge
The portion of living skin that supports the nail plate is the nail
.Bed
Which part of the nail unit is richly supplied with blood vessels and with nerves
Nail bed
The nailbed contains many nerves and is attached to the nail plate with a thin layer of tissue called the
Bed epithelium
Karen is very nervous at her first job interview her hands are sweating so much that she thinks her fingernails are sweating in reality from which part of the nail unit is the sweat most likely arising
Nail folds
Nail polish is applied to the
Nail plate
The area of the nail where the nail plate cells are formed is the
.Matrix
The lighter color of the blank shows the true color of the matrix
Lunula
The dead colorless tissue attached to the natural nail plate is the
Cuticle
The living scan at the base of the nail plate is the
Eponychium
When clipping his own nails Jose accidentally and painfully clips the skin under the nail between the finger tip and the free edge what has he clipped
.hyponychium
The tough band of fibrous tissue that connects bones is the
Ligament
The nail bed and matrix bed or attached to the underlying bone by
Ligaments
The skin that overlaps the side of the nail is called the
.Sidewall
Normal healthy nails grow in a variety of shapes depending upon the shape of the
,Matrix
The longer nail matrix produces a blank nail plate
‘Thicker
Nail growth rates increase dramatically during
Last trimester of pregnancy
As a person ages parts of the nail matrix begin to permanently slow down production causing
‘The plate to develop a series of narrow grooves running down the length of the plate