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Chapter 9 Nail Structure Test Review

Total questions: 23

Worksheet time: 46mins

Name
Class
Date
1.

The hardened keratin structure covering the nail bed is the____.

a)

nail extension

b)

nail plate

c)

matrix

d)

lunula

2.

The most visible and functional part of the nail unit is called the____ .

a)

nail root

b)

nail fold

c)

nail plate

d)

cuticle

3.

The nail plate is constructed of approximately how many layers of nail cells?

a)

50

b)

75

c)

100

d)

125

4.

The end portion of the nail plate that reaches over the fingertip is called the_____ .

a)

nail root

b)

nail extension

c)

nail body or plate

d)

free edge

5.

What is the technical term for the natural nail?

a)

Lunula

b)

Matrix

c)

Onyx

d)

Mantle

6.

The water content of the nail is between___ .

a)

5 and 10 percent

b)

15 and 25 percent

c)

30 and 40 percent

d)

45 and 55 percent

7.

The water content of a nail directly affects the nail’s____ .

a)

Color

b)

length

c)

Thickness

d)

flexibility

8.

The nail unit consists of basic parts, which are the nail bed, matrix, nail plate, and ____________.

a)

cuticle, folds, ligaments, lunula, and free edge

b)

cuticle, eponychium, perionychium, hyponychium, specialized ligaments, and nail folds

c)

onyx, bed epithelium, nail folds, and free edge

d)

cuticle, nail folds, eponychium, hyponychium, and free edge

9.

The blood vessels that provide nourishment for growth of the nail are found in the _____.

a)

nail body

b)

nail root

c)

nail bed

d)

free edge

10.

What is the thin layer of tissue that attaches the nail plate and the nail bed?

a)

Bed epithelium

b)

Cuticle

c)

Eponychium

d)

Free edge

11.

The living skin at the base of the natural nail plate that covers the matrix area is known as the______.

a)

nail bed

b)

eponychium

c)

Hyponychium

d)

mantle

12.

If a toenail is lost through injury, how long will it take for replacement?

a)

3 to 6 months

b)

6 to 9 months

c)

9 to 12 months

d)

12 to 15 months

13.

The average rate of growth of fingernails in normal adults is ________ .

a)

1⁄10" per month

b)

1⁄2" per month

c)

1⁄4" per month

d)

1⁄16" per month

14.

Which nail grows the fastest?

a)

The middle finger

b)

The little finger

c)

The index finger

d)

The thumb

15.

Which nail grows the slowest?

a)

The middle finger

b)

The little finger

c)

The index finger

d)

The thumb

16.

If the matrix remains healthy, a nail lost through injury will be replaced in about how many months?

a)

Four to six

b)

Three to four

c)

Two to three

d)

One to two

17.

The whitish, half-moon shape at the base of the nail is known as the______ .

a)

free edge

b)

bed epithelium

c)

Lunula

d)

eponychium

18.

The dead tissue that tightly adheres to the natural nail plate is the _____ .

a)

Cuticle

b)

eponychium

c)

Hyponychium

d)

ligament

19.

The tough bank of fibrous tissue that holds an organ in place consists of ______.

a)

nail folds

b)

ligaments

c)

half moons

d)

nail grooves

20.

The skin that surrounds the nail plate is known as the ____ .

(weird- it's nail fold- don't be fooled by this one!)

a)

Cuticle

b)

nail wall

c)

Perionychium

d)

nail fold

21.

After an injury, infection, or disease,the natural nail will return to it's healthy growth as long as the _____ is healthy and undamaged.

a)

lateral nail fold

b)

lunula

c)

matrix

d)

nail plate

22.

The ____ is the area where the nail plate cells are formed.

a)

cuticle

b)

lunula

c)

matrix

d)

free edge

23.

The natural nail is an appendage of the _____.

a)

dermis

b)

epidermis

c)

skin

d)

skeleton