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WorksheetsChapter 9 Nail Structure Test Review
Total questions: 23
Worksheet time: 46mins
The hardened keratin structure covering the nail bed is the____.
nail extension
nail plate
matrix
lunula
The most visible and functional part of the nail unit is called the____ .
nail root
nail fold
nail plate
cuticle
The nail plate is constructed of approximately how many layers of nail cells?
50
75
100
125
The end portion of the nail plate that reaches over the fingertip is called the_____ .
nail root
nail extension
nail body or plate
free edge
What is the technical term for the natural nail?
Lunula
Matrix
Onyx
Mantle
The water content of the nail is between___ .
5 and 10 percent
15 and 25 percent
30 and 40 percent
45 and 55 percent
The water content of a nail directly affects the nail’s____ .
Color
length
Thickness
flexibility
The nail unit consists of basic parts, which are the nail bed, matrix, nail plate, and ____________.
cuticle, folds, ligaments, lunula, and free edge
cuticle, eponychium, perionychium, hyponychium, specialized ligaments, and nail folds
onyx, bed epithelium, nail folds, and free edge
cuticle, nail folds, eponychium, hyponychium, and free edge
The blood vessels that provide nourishment for growth of the nail are found in the _____.
nail body
nail root
nail bed
free edge
What is the thin layer of tissue that attaches the nail plate and the nail bed?
Bed epithelium
Cuticle
Eponychium
Free edge
The living skin at the base of the natural nail plate that covers the matrix area is known as the______.
nail bed
eponychium
Hyponychium
mantle
If a toenail is lost through injury, how long will it take for replacement?
3 to 6 months
6 to 9 months
9 to 12 months
12 to 15 months
The average rate of growth of fingernails in normal adults is ________ .
1⁄10" per month
1⁄2" per month
1⁄4" per month
1⁄16" per month
Which nail grows the fastest?
The middle finger
The little finger
The index finger
The thumb
Which nail grows the slowest?
The middle finger
The little finger
The index finger
The thumb
If the matrix remains healthy, a nail lost through injury will be replaced in about how many months?
Four to six
Three to four
Two to three
One to two
The whitish, half-moon shape at the base of the nail is known as the______ .
free edge
bed epithelium
Lunula
eponychium
The dead tissue that tightly adheres to the natural nail plate is the _____ .
Cuticle
eponychium
Hyponychium
ligament
The tough bank of fibrous tissue that holds an organ in place consists of ______.
nail folds
ligaments
half moons
nail grooves
The skin that surrounds the nail plate is known as the ____ .
(weird- it's nail fold- don't be fooled by this one!)
Cuticle
nail wall
Perionychium
nail fold
After an injury, infection, or disease,the natural nail will return to it's healthy growth as long as the _____ is healthy and undamaged.
lateral nail fold
lunula
matrix
nail plate
The ____ is the area where the nail plate cells are formed.
cuticle
lunula
matrix
free edge
The natural nail is an appendage of the _____.
dermis
epidermis
skin
skeleton
