The Integumentary System Answers

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1
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Which are the primary functions of the skin? Select all that apply.

A
protecting the body
B
eliminating waste
C
promoting bacterial growth
D
preventing melanin production
E
generating vitamins
2
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What does the stratum basale contain?

A
dead cells
B
keratin
C
melanocytes
D
nails
5

Which layer of the epidermis produces dead cells?

A
stratum basale
B
stratum corneum
C
stratum granulosum
D
stratum lucidum
E
stratum spinosum
8

What does the stratum granulosum contain?

A
dead cells
B
keratin
C
melanocytes
D
nails
9

Which are examples of maintaining homeostasis? Select all that apply.

A
probiotic bacterial growth on the surface of the skin
B
sweat production on a hot summer day
C
burns on the surface of the skin
D
dilation of the skin’s blood vessels
E
infections on the surface of the skin
F
constriction of the skin’s blood vessels
10

As the skin ages, it loses its ability to restore its shape due to a:

A
decrease in collagen.
B
decrease in hormones.
C
decrease in keratin.
D
decrease in elastin.
11

Moles and freckles are similar in that they are both:

A
skin abnormalities
B
growths
C
caused by an even distribution of melanin
D
caused by an uneven distribution of melanin
14

Specialized skin cells that can trigger an immune response are called:

A
keratinocytes.
B
melanocytes.
C
immunocytes.
D
Langerhans.
15

Nerve cells are found in the:

A
surface of the skin.
B
lowermost portion of the epidermis.
C
dermis.
D
hypodermis.
16

While frying French fries, Wanda burned her hand. Burns are examples of a:

A
skin abnormality.
B
homeostatic balance.
C
skin infection.
D
homeostatic imbalance.
17

Fat cells are essential to the skin to:

A
promote heat loss.
B
promote metabolism.
C
prevent heat loss.
D
prevent thermoregulation.
18

Probiotic bacteria on the surface of the skin:

A
are harmful for the body.
B
are helpful for the body.
C
prevent an immune response.
D
promote keratin formation.
19

The skin acts as a first line of defense against:

A
moles.
B
burns.
C
abnormalities.
D
infections.

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