Question 1

The vesicles that contain melanin are ________.

Accepted Answer

A)   melanosomes
B)   lamellar bodies
C)   keratohyaline
D)   carotenoids
E)   lysosomesF) B) and C)
G) C) and E)

Question 2

Sweat

Accepted Answer

A)   is a hypertonic fluid.
B)   is produced by a merocrine or apocrine gland.
C)   contains only water.
D)   reaches the body only through the hair follicles.
E)   is not associated with emotions.F) A) and C)
G) None of the above

Question 3

Accutane (Isotretinoin)  is a prescriptive drug used to treat severe acne by reducing sebum production. What would be the side effects of decreased sebum production for the integumentary system? (Check all that apply.)

Accepted Answer

A)   Increased infections
B)   Brittle hair
C)   Oily skin
D)   Increased water loss from skin
E)   Cracked skinF) C) and E)
G) B) and C)

Question 4

The epidermis

Accepted Answer

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

Question 5

Select the regions that are composed of loose connective tissue. (Check all that apply.)

Accepted Answer

A)   Epidermis of the skin
B)   Papillary layer of dermis
C)   Reticular layer of the dermis
D)   Subcutaneous tissue or hypodermisE) B) and C)
F) None of the above

Question 6

Keratinization

Accepted Answer

A)   occurs in the dermis.
B)   results in the formation of new epidermal cells.
C)   produces a layer of cells that resist abrasion.
D)   determines skin color.
E)   does not affect permeability characteristics of the epidermis.F) C) and D)
G) B) and C)

Question 7

The portion of a hair that protrudes above the surface of the skin is the ________.

Accepted Answer

A)   hair bulb
B)   hair root
C)   hair shaft
D)   hair follicle
E)   dermal papillaF) B) and C)
G) A) and C)

Question 8

Which type of skin cancer is the most common?

Accepted Answer

A)   Basal cell carcinoma
B)   Squamous cell carcinoma
C)   Melanoma
D)   Kaposi sarcoma
E)   PsoriasisF) C) and D)
G) A) and E)

Question 9

Which of the following statements concerning sebaceous glands is false?

Accepted Answer

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

Question 10

Bob was completely bald on the top of his head by the time he was 35 years of age. Bob noticed he produced abundant sweat on his head when he exercised. He also noticed that his scalp was no longer oily. Which of the following changes account for the observations?
(1)  He has fewer functional hair follicles now.
(2)  He has fewer functional sebaceous glands now.
(3)  He has fewer merocrine sweat glands now.
(4)  He has fewer apocrine sweat glands now.

Accepted Answer

A)   1, 2, 3, 4
B)   1, 2, 3
C)   1, 2, 4
D)   1, 3, 4
E)   1, 2F) A) and B)
G) All of the above

Question 11

Thick skin

Accepted Answer

A)   has three different epidermal strata.
B)   has fewer layers of cells in the stratum corneum than thin skin.
C)   is found covering most of the body.
D)   is found in areas subject to pressure or friction, such as the palms.
E)   is determined by the thickness of the dermis.F) A) and B)
G) A) and C)

Question 12

Which of the following statements concerning vitamin D is false?

Accepted Answer

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

Question 13

In which layer of the epidermis are lamellar bodies formed inside keratinocytes?

Accepted Answer

A)   Stratum basale
B)   Stratum spinosum
C)   Stratum granulosum
D)   Stratum lucidum
E)   Stratum corneumF) B) and D)
G) C) and E)

Question 14

When comparing the dermis with the subcutaneous tissue, the dermis

Accepted Answer

A)   has more adipocytes than the subcutaneous layer.
B)   is a more vascular tissue than the subcutaneous layer.
C)   is divided into two layers; the subcutaneous layer is not.
D)   contains melanocytes; the subcutaneous layer does not.
E)   and the subcutaneous layer do not contain collagen.F) C) and E)
G) B) and C)

Question 15

The outer surface of the hair is called the ________.

Accepted Answer

A)   shaft
B)   cuticle
C)   hair bulb
D)   medulla
E)   rootF) None of the above
G) A) and C)

Question 16

A parent of a baby visits the pediatrician because the baby's skin is turning orange. Fortunately, the baby's lab tests indicate no abnormality. What could be causing the orange coloration?

Accepted Answer

A)   The baby was in the sun too long.
B)   The parent has been feeding the baby orange soda.
C)   The baby's diet consists of mostly sweet potatoes and carrots.
D)   There is no logical explanation for this coloration change.E) B) and C)
F) A) and D)

Question 17

-What does structure "B" represent on the diagram?

Accepted Answer

A)   Hair follicle
B)   Arrector pili
C)   Epidermis and dermis
D)   Subcutaneous tissue
E)   Sebaceous glandF) A) and C)
G) All of the above

Question 18

A recent study demonstrated that there are three unique strains of Propionibacterium acnes; two strains are more prevalent in people with acne; however, one of which appears not to be pathogenic to humans and is more prevalent in people with 'clear' skin. Additionally, the strain of P. acnes found in healthy skin kills invading bacteria, including the pathogenic P. acnes. Which of the following statements about the targeted removal of 'bad' P. acnes and addition of 'good' P. acnes is INCORRECT?

Accepted Answer

A)   After "bad" P. acnes is removed, the applications of "good" P. acnes should be able to grow and kill invasive bacteria.
B)   Once removed, the invading pathogenic P. acnes cannot regrow on the skin.C) A) and B)
D) undefined

Question 19

What will develop when the skin is subjected to excess friction or pressure?

Accepted Answer

A)   Carcinoma
B)   Melanoma
C)   Papillae
D)   Stretch marks
E)   CallusF) C) and E)
G) C) and D)

Question 20

Eskimos wear a great deal of clothing and have limited exposure to ultraviolet light, but do not suffer from vitamin D deficiency. A possible explanation is

Accepted Answer

A)   they do not need vitamin D.
B)   their exposure to ultraviolet light in the summer will last for a year.
C)   they get enough vitamin D in their diet of fish and marine mammals.
D)   they do not require sunlight for vitamin D formation.
E)   their bodies produce vitamin D another way.F) A) and C)
G) C) and D)

Exam 5: Integumentary System

What will develop when the skin is subjected to excess friction or pressure?

Correct Answer
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Keratinization

Correct Answer
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Which of the following statements concerning sebaceous glands is false?

Correct Answer
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The epidermis

Correct Answer
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Which of the following statements concerning vitamin D is false?

Correct Answer
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Thick skin

Correct Answer
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Accutane (Isotretinoin) is a prescriptive drug used to treat severe acne by reducing sebum production. What would be the side effects of decreased sebum production for the integumentary system? (Check all that apply.)

Correct Answer
verified

Sweat

Correct Answer
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Correct Answer
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In which layer of the epidermis are lamellar bodies formed inside keratinocytes?

Correct Answer
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Correct Answer
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Select the regions that are composed of loose connective tissue. (Check all that apply.)

Correct Answer
verified

When comparing the dermis with the subcutaneous tissue, the dermis

Correct Answer
verified

Eskimos wear a great deal of clothing and have limited exposure to ultraviolet light, but do not suffer from vitamin D deficiency. A possible explanation is

Correct Answer
verified

-What does structure "B" represent on the diagram?

Correct Answer
verified

The portion of a hair that protrudes above the surface of the skin is the ________.

Correct Answer
verified

The outer surface of the hair is called the ________.

Correct Answer
verified

Which type of skin cancer is the most common?

Correct Answer
verified

The vesicles that contain melanin are ________.

Correct Answer
verified

A parent of a baby visits the pediatrician because the baby's skin is turning orange. Fortunately, the baby's lab tests indicate no abnormality. What could be causing the orange coloration?

Correct Answer
verified

Exam 5: Integumentary System

What will develop when the skin is subjected to excess friction or pressure?

Correct AnswerverifiedShow Answer

Keratinization

Correct AnswerverifiedShow Answer

Which of the following statements concerning sebaceous glands is false?

Correct AnswerverifiedShow Answer

The epidermis

Correct AnswerverifiedShow Answer

Which of the following statements concerning vitamin D is false?

Correct AnswerverifiedShow Answer

Thick skin

Correct AnswerverifiedShow Answer

Accutane (Isotretinoin) is a prescriptive drug used to treat severe acne by reducing sebum production. What would be the side effects of decreased sebum production for the integumentary system? (Check all that apply.)

Correct AnswerverifiedShow Answer

Sweat

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In which layer of the epidermis are lamellar bodies formed inside keratinocytes?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Select the regions that are composed of loose connective tissue. (Check all that apply.)

Correct AnswerverifiedShow Answer

When comparing the dermis with the subcutaneous tissue, the dermis

Correct AnswerverifiedShow Answer

Eskimos wear a great deal of clothing and have limited exposure to ultraviolet light, but do not suffer from vitamin D deficiency. A possible explanation is

Correct AnswerverifiedShow Answer

-What does structure "B" represent on the diagram?

Correct AnswerverifiedShow Answer

The portion of a hair that protrudes above the surface of the skin is the ________.

Correct AnswerverifiedShow Answer

The outer surface of the hair is called the ________.

Correct AnswerverifiedShow Answer

Which type of skin cancer is the most common?

Correct AnswerverifiedShow Answer

The vesicles that contain melanin are ________.

Correct AnswerverifiedShow Answer

A parent of a baby visits the pediatrician because the baby's skin is turning orange. Fortunately, the baby's lab tests indicate no abnormality. What could be causing the orange coloration?

Correct AnswerverifiedShow Answer

Correct Answer
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