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The natural nail is composed mainly of a hard, fiber-shaped __.
Protein
The lighter color of the __ shows the true color of the matrix.
lunula
The dead, colorless tissue attached to the natural nail plate is the ___.
cuticle
The skin that overlaps the side of the nail is called the ___.
sidewalls
As a person ages, parts of the nail matrix begin to permanently slow down production, causing __.
narrow grooves running down the length of the nail plate.
The surface of a healthy natural nail should be ___.
Smooth and unspotted
Which type of nail has a noticeably thin, white nail plate and is more flexible than a normal nail?
Eggshell
A dark band within the nail plate extending from the base to the free edge due to increased pigmentation is known as __.
melanonychia
How would you recommend clients make their plate grow thicker?
Nothing can make the nail plate grow thicker.
How long does it take for fingernail plates to be fully replaced?
4 to 6 months
Angela is training to be a cosmetologist. While she is working on a client, her manager stops her because she’s about to clip too close to the eponychium. What might Angela have confused the eponychium for?
the nail cuticle
What part of the natural nail unit protects the tips of the fingers and toes?
nail plate
The lateral nail fold is also known as __ .
sidewalls
The proximal nail fold is the entire flap of skin that covers what?
the matrix
The nail plate has approximately how many nail cell layers?
100
What is the water content of a healthy nail?
15 to 25 percent
