Question 1

The advantage of cryo-electron tomography is that it

Accepted Answer

A)  enables cells to divide continually. 
B)  is cheaper than other methods. 
C)  provides a static view of the skin. 
D)  preserves intercellular junctions. 
A)  enables cells to divide continually. 
B)  is cheaper than other methods. 
C)  provides a static view of the skin. 
D)  preserves intercellular junctions.

Question 2

We enjoy sunbathing because it stimulates keratinocytes to release

Accepted Answer

A)  beta endorphin. 
B)  collagen. 
C)  carotene. 
D)  keratin. 
A)  beta endorphin. 
B)  collagen. 
C)  carotene. 
D)  keratin.

Question 3

Skin wrinkles with age because

Accepted Answer

A)  collagen degrades in the subcutaneous layer as the epidermis shrinks. 
B)  fat is lost from the subcutaneous layer and the dermis shrinks. 
C)  the number of sweat glands diminishes. 
D)  epidermal cells undergo a burst of cell division. 
A)  collagen degrades in the subcutaneous layer as the epidermis shrinks. 
B)  fat is lost from the subcutaneous layer and the dermis shrinks. 
C)  the number of sweat glands diminishes. 
D)  epidermal cells undergo a burst of cell division.

Question 4

Corns are

Accepted Answer

A)  areas of white skin pigmentation. 
B)  scaly scalp areas. 
C)  keratinized conical masses on toes. 
D)  growths emanating from the nostrils. 
A)  areas of white skin pigmentation. 
B)  scaly scalp areas. 
C)  keratinized conical masses on toes. 
D)  growths emanating from the nostrils.

Question 5

An autograft covers an injured area of skin with

Accepted Answer

A)  skin from a person other than the patient. 
B)  a skin substitute, such as an artificial membrane. 
C)  skin from a skin bank. 
D)  skin from an uninjured region of the patient's body. 
A)  skin from a person other than the patient. 
B)  a skin substitute, such as an artificial membrane. 
C)  skin from a skin bank. 
D)  skin from an uninjured region of the patient's body.

Question 6

The dermis is very flat compared to the epidermis, which has ridges projecting inward and elevations called papillae.

Accepted Answer

A) True 
 B)False

Question 7

As a person ages, the skin typically becomes

Accepted Answer

A)  thicker. 
B)  more opaque. 
C)  more elastic. 
D)  spotted with patches of pigment. 
A)  thicker. 
B)  more opaque. 
C)  more elastic. 
D)  spotted with patches of pigment.

Question 8

The layer of the epidermis that includes melanocytes and a single row of columnar cells that undergo mitosis is the

Accepted Answer

A)  stratum corneum. 
B)  stratum granulosum. 
C)  stratum spinosum. 
D)  stratum basale. 
A)  stratum corneum. 
B)  stratum granulosum. 
C)  stratum spinosum. 
D)  stratum basale.

Question 9

A burn that invovles the epidermis only is called a deep partial-thickness burn.

Accepted Answer

A) True 
 B)False

Question 10

In treating a burn patient, the "rule of nines" is used to estimate the

Accepted Answer

A)  depth of the burn. 
B)  surface area of the burn. 
C)  degree and source of the burn. 
D)  type of scar that will form. 
A)  depth of the burn. 
B)  surface area of the burn. 
C)  degree and source of the burn. 
D)  type of scar that will form.

Question 11

Inflammation

Accepted Answer

A)  is a type of infection. 
B)  is a result of exposure to very low temperatures. 
C)  is a normal response to stress or injury. 
D)  is an abnormal response to injury or stress. 
A)  is a type of infection. 
B)  is a result of exposure to very low temperatures. 
C)  is a normal response to stress or injury. 
D)  is an abnormal response to injury or stress.

Question 12

You step out of the shower and vigorously rub your skin with a towel. If you were able to analyze the towel, you would find skin cells. They are most likely

Accepted Answer

A)  subcutaneous layer cells. 
B)  from the dermis. 
C)  keratinized epidermal cells. 
D)  fibroblasts. 
A)  subcutaneous layer cells. 
B)  from the dermis. 
C)  keratinized epidermal cells. 
D)  fibroblasts.

Question 13

A burn affecting only the epidermis is a

Accepted Answer

A)  superficial partial-thickness burn. 
B)  deep partial-thickness burn. 
C)  second-degree burn. 
D)  third-degree burn. 
A)  superficial partial-thickness burn. 
B)  deep partial-thickness burn. 
C)  second-degree burn. 
D)  third-degree burn.

Question 14

Hypothermia is

Accepted Answer

A)  associated with exercising vigorously in the heat. 
B)  accompanied by fever. 
C)  a lowered body temperature. 
D)  a form of hair loss. 
A)  associated with exercising vigorously in the heat. 
B)  accompanied by fever. 
C)  a lowered body temperature. 
D)  a form of hair loss.

Question 15

Melanocytes synthesize melanin, which protects underlying cells from the effects of ultraviolet light.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is a normal response to excessive loss of body heat in a cold environment?

Accepted Answer

A)  Dermal blood vessels constrict. 
B)  Sweat glands become active. 
C)  Smooth muscles relax. 
D)  Dermal blood vessels dilate. 
A)  Dermal blood vessels constrict. 
B)  Sweat glands become active. 
C)  Smooth muscles relax. 
D)  Dermal blood vessels dilate.

Question 17

A nail consists of

Accepted Answer

A)  dense connective tissue. 
B)  bone. 
C)  a nail bed and nail plate. 
D)  collagen and elastin. 
A)  dense connective tissue. 
B)  bone. 
C)  a nail bed and nail plate. 
D)  collagen and elastin.

Question 18

The epidermis

Accepted Answer

A)  retains water in deeper skin layers. 
B)  keeps out harmful chemicals and pathogens. 
C)  protects the skin against mechanical injury. 
D)  all of the above. 
A)  retains water in deeper skin layers. 
B)  keeps out harmful chemicals and pathogens. 
C)  protects the skin against mechanical injury. 
D)  all of the above.

Question 19

Elderly persons may become less able to maintain stable body temperature because

Accepted Answer

A)  they sweat excessively. 
B)  their sebaceous glands become overactive. 
C)  the number of sweat glands diminishes. 
D)  the skin becomes too oily. 
A)  they sweat excessively. 
B)  their sebaceous glands become overactive. 
C)  the number of sweat glands diminishes. 
D)  the skin becomes too oily.

Question 20

Which person is at highest risk of developing a cutaneous carcinoma?

Accepted Answer

A)  A light-complexioned man age 52 who goes to the beach on summer weekends and does not use sunblock because he likes to be tan 
B)  An eighty-year-old who spends most of her time indoors 
C)  A twenty-two-year-old college student who is outdoors often and uses sunblock 
D)  A black woman who spends most of her time in her office 
A)  A light-complexioned man age 52 who goes to the beach on summer weekends and does not use sunblock because he likes to be tan 
B)  An eighty-year-old who spends most of her time indoors 
C)  A twenty-two-year-old college student who is outdoors often and uses sunblock 
D)  A black woman who spends most of her time in her office

Exam 6: Integumentary System

The advantage of cryo-electron tomography is that it

We enjoy sunbathing because it stimulates keratinocytes to release

Skin wrinkles with age because

Corns are

An autograft covers an injured area of skin with

The dermis is very flat compared to the epidermis, which has ridges projecting inward and elevations called papillae.

As a person ages, the skin typically becomes

The layer of the epidermis that includes melanocytes and a single row of columnar cells that undergo mitosis is the

A burn that invovles the epidermis only is called a deep partial-thickness burn.

In treating a burn patient, the "rule of nines" is used to estimate the

Inflammation

You step out of the shower and vigorously rub your skin with a towel. If you were able to analyze the towel, you would find skin cells. They are most likely

A burn affecting only the epidermis is a

Hypothermia is

Melanocytes synthesize melanin, which protects underlying cells from the effects of ultraviolet light.

Which of the following is a normal response to excessive loss of body heat in a cold environment?

A nail consists of

The epidermis

Elderly persons may become less able to maintain stable body temperature because

Which person is at highest risk of developing a cutaneous carcinoma?

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

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