Question 1

Describe the movement of melanin in the skin.

Accepted Answer

A)   Melanin is transferred from melanocytes to keratinocytes.
B)   Melanin is transferred from melanocytes to Merkel cells.
C)   Melanocytes carry melanin with them as they migrate toward the skin surface.
D)   Melanin is transferred from keratinocytes to melanocytes.E) None of the above
F) B) and C)

Question 2

The nail root and the nail body attach to the

Accepted Answer

A)   nail groove.
B)   hyponychium.
C)   nail bed.
D)   lunula.
E)   hypodermis.F) All of the above
G) B) and C)

Question 3

Sweat

Accepted Answer

A)   reaches the body only through the hair follicles.
B)   is not associated with emotions.
C)   contains only water.
D)   is produced by a merocrine or apocrine gland.
E)   is a hypertonic fluid.F) A) and E)
G) C) and E)

Question 4

The acne-associated bacterium Propionibacterium acnes are found in sebum-rich of the skin, such as the arms, palms, and axillary regions.

Accepted Answer

A) True 
 B)False

Question 5

The activity of apocrine sweat glands

Accepted Answer

A)   gives the skin a healthy glow.
B)   produces sweat on the palm of the hand.
C)   leads to body odor.
D)   produces cerumen.
E)   produces an oily secretion.F) None of the above
G) A) and E)

Question 6

All of the following statements concerning hair are true except one. Identify the exception.

Accepted Answer

A)   In pattern baldness, those hair follicles present begin to produce vellus hair.
B)   Hair growth occurs in cycles, with growth and resting stages.
C)   Some loss of hair is normal and indicates old hairs are being pushed out by new hairs.
D)   Genetic factors and testosterone cause pattern baldness.
E)   The growth rate of all types of hair is the same.F) B) and E)
G) B) and C)

Question 7

By reducing body temperature during hot weather, skin helps to maintain

Accepted Answer

A)   blood pH.
B)   body temperature homeostasis.
C)   brain activity.
D)   body structure.
E)   blood volume.F) None of the above
G) A) and B)

Question 8

Which of the following statements is false?

Accepted Answer

A)   Sebaceous secretions are lipid soluble.
B)   Secretions from sebaceous glands oil the hair and skin.
C)   Secretions from sebaceous glands provide protection against bacteria.
D)   Most sebaceous glands are connected by a duct to the upper portion of the hair follicle.
E)   Sebaceous glands are an example of apocrine glands.F) B) and D)
G) A) and E)

Question 9

Which of the following statements concerning vitamin D is false?

Accepted Answer

A)   Vitamin D is necessary for the formation of bones and teeth.
B)   Vitamin D causes the kidney to excrete calcium.
C)   Vitamin D is important for calcium homeostasis.
D)   Vitamin D is necessary for the uptake of calcium from the intestine.
E)   Vitamin D begins its synthesis in the skin when the skin is exposed to ultraviolet light.F) A) and B)
G) A) and C)

Question 10

The epidermis

Accepted Answer

A)   is composed of loose connective tissue.
B)   is made up mostly of melanocytes.
C)   is composed of the reticular and papillary layers.
D)   is thicker than the dermis.
E)   contains no blood vessels.F) B) and E)
G) A) and B)

Question 11

The bluish tinge of skin due to a reduction of oxygen in the blood is called

Accepted Answer

A)   desquamation.
B)   hemolysis.
C)   cyanosis.
D)   carotenosis.
E)   albinism.F) D) and E)
G) All of the above

Question 12

This is the site of fat storage in the skin.

Accepted Answer

A)   epidermis
B)   papillary layer
C)   reticular layer
D)   hypodermis
E)   stretch marksF) A) and B)
G) All of the above

Question 13

Which vitamin begins its synthesis in the skin exposed to ultraviolet light?

Accepted Answer

A)   vitamin C
B)   vitamin E
C)   vitamin B
D)   vitamin D
E)   vitamin AF) B) and E)
G) None of the above

Question 14

-The figure illustrates keratinization in the epidermis. What layer of the epidermis is "E"?

Accepted Answer

A)   stratum lucidum
B)   stratum spinosum
C)   stratum granulosum
D)   stratum basale
E)   stratum corneumF) D) and E)
G) None of the above

Question 15

The skin discoloration most likely to result from liver disease is

Accepted Answer

A)   cyanosis.
B)   jaundice.
C)   hematoma.
D)   pallor.
E)   erythema.F) D) and E)
G) B) and E)

Question 16

The layer of epidermis that undergoes mitosis and forms new epidermal cells is the

Accepted Answer

A)   stratum lucidum.
B)   stratum granulosum.
C)   stratum basale.
D)   stratum corneum.
E)   stratum dermum.F) None of the above
G) All of the above

Question 17

Skin color is the result of the

Accepted Answer

A)   amount of fat in the hypodermis.
B)   quantity of melanin in the skin.
C)   number of melanocytes in the skin.
D)   number of keratinocytes in the skin.
E)   thickness of the stratum basale.F) A) and D)
G) All of the above

Question 18

Ringworm is an infection of the skin, hair, and nails caused by a

Accepted Answer

A)   parasite.
B)   virus.
C)   inflammation.
D)   bacterium.
E)   fungus.F) A) and E)
G) A) and D)

Question 19

Which of the following functions is associated with the skin?

Accepted Answer

A)   fat production
B)   protection against ultraviolet radiation of the sun
C)   vitamin A production
D)   regulation of body pH
E)   vitamin C productionF) A) and D)
G) D) and E)

Question 20

A burn classified as partial thickness could be _____.

Accepted Answer

A)   epidermal or dermal
B)   first or second degree
C)   second or third degree
D)   thin or deepE) A) and D)
F) C) and D)

Exam 5: Integumentary System

The layer of epidermis that undergoes mitosis and forms new epidermal cells is the

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The epidermis

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The nail root and the nail body attach to the

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Which of the following functions is associated with the skin?

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A burn classified as partial thickness could be _____.

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All of the following statements concerning hair are true except one. Identify the exception.

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Skin color is the result of the

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This is the site of fat storage in the skin.

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By reducing body temperature during hot weather, skin helps to maintain

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Which vitamin begins its synthesis in the skin exposed to ultraviolet light?

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Ringworm is an infection of the skin, hair, and nails caused by a

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-The figure illustrates keratinization in the epidermis. What layer of the epidermis is "E"?

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Which of the following statements is false?

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Sweat

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Which of the following statements concerning vitamin D is false?

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The acne-associated bacterium Propionibacterium acnes are found in sebum-rich of the skin, such as the arms, palms, and axillary regions.

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Describe the movement of melanin in the skin.

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The skin discoloration most likely to result from liver disease is

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The activity of apocrine sweat glands

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The bluish tinge of skin due to a reduction of oxygen in the blood is called

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