Question 1

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

Question 2

Which of the following statements concerning the epidermis is true?

Accepted Answer

A)  The dermis is superficial to the epidermis. 
B)  The epidermis contains numerous blood vessels. 
C)  The most numerous cells in the epidermis are the melanocytes. 
D)  The epidermis is nourished by blood vessels located in the dermis. 
E)  The epidermis is very permeable to water-soluble molecules. 
A)  The dermis is superficial to the epidermis. 
B)  The epidermis contains numerous blood vessels. 
C)  The most numerous cells in the epidermis are the melanocytes. 
D)  The epidermis is nourished by blood vessels located in the dermis. 
E)  The epidermis is very permeable to water-soluble molecules.

Question 3

What type of cancer can actinic keratosis develop into?

Accepted Answer

A)  basal cell carcinoma 
B)  squamous cell carcinoma 
C)  melanoma 
D)  Kaposi's sarcoma 
E)  psoriasis 
A)  basal cell carcinoma 
B)  squamous cell carcinoma 
C)  melanoma 
D)  Kaposi's sarcoma 
E)  psoriasis

Question 4

Melanoma can be detected early and treated with the application of a special rule. Which of the following is NOT a test used to determine if a mole is cancerous?

Accepted Answer

A)  color 
B)  border 
C)  asymmetry 
D)  freckles 
E)  diameter 
A)  color 
B)  border 
C)  asymmetry 
D)  freckles 
E)  diameter

Question 5

Barney sat on a hot camp stove while on a camping trip. The burn was painful and blistered. His was what type of burn?

Accepted Answer

A)  first degree 
B)  second degree 
C)  third degree 
D)  fourth degree 
E)  fifth degree 
A)  first degree 
B)  second degree 
C)  third degree 
D)  fourth degree 
E)  fifth degree

Question 6

Thin skin has only four epithelial strata. It lacks which of the following?

Accepted Answer

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

Question 7

The layer of epithelium that covers the skin is called the

Accepted Answer

A)  dermis. 
B)  epidermis. 
C)  hypodermis. 
D)  mesodermis. 
E)  papillary layer. 
A)  dermis. 
B)  epidermis. 
C)  hypodermis. 
D)  mesodermis. 
E)  papillary layer.

Question 8

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

Accepted Answer

A)  hair follicle 
B)  arrector pili 
C)  dermis 
D)  hypodermis 
E)  sebaceous gland 
A)  hair follicle 
B)  arrector pili 
C)  dermis 
D)  hypodermis 
E)  sebaceous gland

Question 9

In which of the following does desquamation of the stratum corneum occur?

Accepted Answer

A)  biting fingernails 
B)  losing hair from your scalp 
C)  a 5-minute surgical scrub 
D)  scar formation 
E)  hair growth 
A)  biting fingernails 
B)  losing hair from your scalp 
C)  a 5-minute surgical scrub 
D)  scar formation 
E)  hair growth

Question 10

Vitamin C is essential for normal collagen synthesis. If a child suffered from a vitamin C deficiency, which layer of the skin would be most affected?

Accepted Answer

A)  reticular layer of dermis 
B)  stratum corneum 
C)  stratum granulosum 
D)  epidermis 
E)  stratum basale 
A)  reticular layer of dermis 
B)  stratum corneum 
C)  stratum granulosum 
D)  epidermis 
E)  stratum basale

Question 11

-The diagram illustrates glands of the skin. What does "C" represent?

Accepted Answer

A)  apocrine sweat gland 
B)  sebaceous gland 
C)  eccrine sweat gland 
D)  duct of apocrine sweat gland 
E)  sweat pore 
A)  apocrine sweat gland 
B)  sebaceous gland 
C)  eccrine sweat gland 
D)  duct of apocrine sweat gland 
E)  sweat pore

Question 12

The blue color of superficial blood vessels results from

Accepted Answer

A)  a lack of melanin in the area. 
B)  the light-scattering properties of collagen. 
C)  the superficial location of skin pigments. 
D)  an increase in arterial blood circulating in the area. 
E)  a lack of oxygen in the blood. 
A)  a lack of melanin in the area. 
B)  the light-scattering properties of collagen. 
C)  the superficial location of skin pigments. 
D)  an increase in arterial blood circulating in the area. 
E)  a lack of oxygen in the blood.

Question 13

This stratum contains many layers of dead squamous cells.

Accepted Answer

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

Question 14

Which type of skin cancer is the most deadly?

Accepted Answer

A)  basal cell carcinoma 
B)  squamous cell carcinoma 
C)  melanoma 
D)  Kaposi's sarcoma 
E)  psoriasis 
A)  basal cell carcinoma 
B)  squamous cell carcinoma 
C)  melanoma 
D)  Kaposi's sarcoma 
E)  psoriasis

Question 15

Which cells of the epidermis are part of the immune system?

Accepted Answer

A)  keratinocytes 
B)  melanocytes 
C)  Langerhans cells 
D)  Merkel cells 
E)  fibroblasts 
A)  keratinocytes 
B)  melanocytes 
C)  Langerhans cells 
D)  Merkel cells 
E)  fibroblasts

Question 16

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, 2 
A)  1, 2, 3, 4 
B)  1, 2, 3 
C)  1, 2, 4 
D)  1, 3, 4 
E)  1, 2

Question 17

A malfunction of the process of keratinization results in the condition known as

Accepted Answer

A)  psoriasis. 
B)  cyanosis. 
C)  jaundice. 
D)  impetigo. 
E)  acne. 
A)  psoriasis. 
B)  cyanosis. 
C)  jaundice. 
D)  impetigo. 
E)  acne.

Question 18

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

Accepted Answer

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

Question 19

Exposure to ultraviolet light causes the skin to darken by stimulating the

Accepted Answer

A)  breakdown of carotene. 
B)  breakdown of melanin. 
C)  buildup of bilirubin. 
D)  activity of the enzyme tyrosinase. 
E)  activity of the keratinocytes. 
A)  breakdown of carotene. 
B)  breakdown of melanin. 
C)  buildup of bilirubin. 
D)  activity of the enzyme tyrosinase. 
E)  activity of the keratinocytes.

Question 20

What is synonymous with the cuticle?

Accepted Answer

A)  nail root 
B)  nail body 
C)  nail fold 
D)  eponychium 
E)  hyponychium 
A)  nail root 
B)  nail body 
C)  nail fold 
D)  eponychium 
E)  hyponychium

Exam 5: Integumentary System

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

Which of the following statements concerning the epidermis is true?

What type of cancer can actinic keratosis develop into?

Melanoma can be detected early and treated with the application of a special rule. Which of the following is NOT a test used to determine if a mole is cancerous?

Barney sat on a hot camp stove while on a camping trip. The burn was painful and blistered. His was what type of burn?

Thin skin has only four epithelial strata. It lacks which of the following?

The layer of epithelium that covers the skin is called the

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

In which of the following does desquamation of the stratum corneum occur?

Vitamin C is essential for normal collagen synthesis. If a child suffered from a vitamin C deficiency, which layer of the skin would be most affected?

-The diagram illustrates glands of the skin. What does "C" represent?

The blue color of superficial blood vessels results from

This stratum contains many layers of dead squamous cells.

Which type of skin cancer is the most deadly?

Which cells of the epidermis are part of the immune system?

A malfunction of the process of keratinization results in the condition known as

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

Exposure to ultraviolet light causes the skin to darken by stimulating the

What is synonymous with the cuticle?

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