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The structure and functions of the nail & skin

Total questions: 19

Worksheet time: 26mins

Name
Class
Date
1.
What part of the nail prevents bacteria from entering the matrix?
a)
Nail walls
b)
Nail grooves
c)
Lunula
d)
Cuticle
2.
The tip of the nail that extends past the finger or toe
a)
free edge
b)
matrix
c)
extension
d)
hyponychium
3.

Part of the nail unit that is supplied with blood vessels & nerves

a)

nail plate

b)

matrix

c)

nail bed

d)

nail folds

4.

When the nail plate grows it glides across the

a)

nail bed

b)

nail matrix

c)

eponychium

d)

hyponychium

5.

Fold of skin overlapping the sides of the nail

a)

Lunula

b)

Side/ail walls

c)

Nail plate

d)

Natural nail

6.

The slightly thickened layer of skin which creates a dividing line between the fingertip and free edge is

a)

Eponychium

b)

Mantle

c)

Hyponychium

d)

Matrix

7.
The living skin at the base of the nail plate covering the matrix area is the
a)
Eponychium
b)
Hyponychium
c)
Free edge
d)
Bed epithelium
8.

The living area of the nail structure where the nail plate cells are formed is the

a)

Matrix

b)

hyponychium

c)

Lunula

d)

Free edge

9.

The portion of living skin that the nail plate is attached to is the

a)

Nail root

b)

Nail matrix

c)

Nail groove

d)

Nail bed

10.

The hard, visible and functional part of the nail unit is

a)

Nail bed

b)

Nail plate

c)

Nail grooves

d)

Nail mantle

11.

Nail cells are formed by mitosis in what what part of the nail structure?

a)

mantle

b)

nail grooves

c)

matrix

d)

lunula

12.

The natural nail is a hard, protective plate made up of a protein called?

a)

keratin

b)

melanin

c)

sebum

d)

mineral

13.
In which layer of the epidermis does mitosis occur?
a)
Stratum germinativum
b)
Stratum lucidium
c)
Stratum granulosum
d)
Stratum spinosum
14.
What are the 2 main functions of the subcutaneous layer? 
a)
Keep us warm, protects underlying tissue from shock
b)
Controls sweating, keeps us warm
c)
Protects underlying tissue from shock, produces oils
d)
Produces oils and controls sweating
15.
What do Mast cells release? 
a)
Sebum
b)
Melanin
c)
Histamine
d)
Antibodies
16.
Which of the following is not a function of the skin?
a)
Protection
b)
Transportation
c)
Secretion
d)
Absorption
17.
What appendage of the skin are the eccrine and appocrine more commonly known as?
a)
Secaceous gland
b)
Sudoriferous gland
c)
Dermal papilla
d)
Nerve endings
18.
What are the 3 main layers of the skin? 
a)
Epidermis, Dermis and reticular
b)
Dermis, subcutaneous and langerhan
c)
Epidermis, Dermis & Subcutaneous
d)
Dermis, epidermis and stratum corneum
19.
The acid mantle on the skin helps to: 
a)
Control the skin’s temperature
b)
Control the ageing process 
c)
Control bacteria 
d)
Control the tanning process

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