Question 1

Why is pulling a hair painful,yet cutting a hair is not?

Accepted Answer

Pulling a hair is painful because its ro...

Question 2

________ hairs are coarse pigmented hairs.

Accepted Answer

A)  Vellus
B)  Dense
C)  Follicular
D)  Terminal
E)  KeratinousF) All of the above
G) A) and B)

Question 3

Predict the degree of scarring after the healing of a horizontal cut on the forehead just above the eyebrow.

Accepted Answer

A)  The scarring will be minimal because the cut follows the same direction as the tension lines.
B)  The scarring will be minimal because the cut is at a right angle to the direction of the tension lines.
C)  The scarring will be significant because the cut follows the same direction as the tension lines.
D)  The scarring will be significant because the cut is at a right angle to the direction of the tension lines.
E)  The scarring will be minimal because no tension lines run through that area of the body.F) D) and E)
G) C) and D)

Question 4

All of the following are characteristics of the epidermis except that it

Accepted Answer

A)  is multilayered.
B)  is flexible.
C)  is self-repairing.
D)  serves as UV radiation protection.
E)  is vascularized.F) B) and D)
G) All of the above

Question 5

The most dangerous type of skin cancer is termed

Accepted Answer

A)  cyanosis.
B)  basal cell carcinoma.
C)  malignant melanoma.
D)  metastasis.
E)  melanosome.F) A) and E)
G) A) and C)

Question 6

The ________ in keratinocytes protects the epidermis and dermis from the harmful effects of sunlight.

Accepted Answer

A)  sebum
B)  hemoglobin
C)  melanin
D)  carotene
E)  keratinF) None of the above
G) C) and D)

Question 7

Explain why the rate of dehydration is greater when a person is immersed in seawater than when in fresh water.

Accepted Answer

Salty ocean water is very hypertonic com...

Question 8

Rickets can be prevented by

Accepted Answer

A)  adequate sunlight.
B)  dietary intake of cholecalciferol.
C)  avoiding sunlight.
D)  adequate sunlight and dietary intake of cholecalciferol.
E)  dietary intake of cholecalciferol and avoiding sunlight.F) C) and D)
G) A) and D)

Question 9

In a condition known as sunstroke,the victim appears flushed,the skin is warm and dry,and the body temperature rises dramatically.Explain these observations based on what you know concerning the role of the skin in thermoregulation.

Accepted Answer

When the body temperature increases,more...

Question 10

Why would an elderly person be more prone to skin infections than a younger person?

Accepted Answer

A)  Skin repairs take longer in the elderly.
B)  The epidermis is thinner in the elderly.
C)  There are fewer dendritic cells in the skin of the elderly.
D)  All of the answers are correct.E) B) and C)
F) None of the above

Question 11

All of the following are functions of accessory structures of integument except

Accepted Answer

A)  thermoregulation.
B)  protection of skull.
C)  sensation of touch.
D)  production of skin pigments.
E)  excretion of sweat.F) D) and E)
G) B) and D)

Question 12

All of the following are true of perspiration produced by merocrine sweat glands except that it

Accepted Answer

A)  is very watery.
B)  contains electrolytes and waste products.
C)  helps cool the body when it evaporates.
D)  helps prevent bacteria from colonizing the skin.
E)  produces the body odor characteristic of "sweating."F) B) and E)
G) A) and D)

Question 13

At the base of a nail,keratinized skin called the cuticle is also called the

Accepted Answer

A)  eponychium.
B)  lunula.
C)  hyponychium.
D)  cerumen.
E)  phalanx.F) B) and E)
G) D) and E)

Question 14

Many medications can be administered transdermally by applying patches that contain the medication to the surface of the skin.These patches can be attached anywhere on the skin except the palms of the hands and the soles of the feet.Why?

Accepted Answer

Thick skin slows the rate of diffusion o...

Question 15

Each of the following is a function of the integumentary system except

Accepted Answer

A)  protection of underlying tissue.
B)  excretion of salts and wastes.
C)  maintenance of body temperature.
D)  synthesis of vitamin C.
E)  provision of sensation.F) A) and B)
G) B) and D)

Question 16

________ is a pigment found in vegetables that can make the skin appear orange or yellow.

Accepted Answer

A)  Melanin
B)  Chlorophyll
C)  Carotene
D)  Hemoglobin
E)  BilirubinF) C) and E)
G) B) and C)

Question 17

In which layer of skin are keratinocytes produced?

Accepted Answer

A)  dermis
B)  subcutaneous layer
C)  stratum spinosum
D)  stratum corneum
E)  stratum basaleF) A) and B)
G) A) and C)

Question 18

In some cultures,females must be covered from head to toe when they go outdoors.Explain why these women are at increased risk of developing bone problems later in life.

Accepted Answer

The hormone cholecalciferol (vitamin D3)...

Question 19

Nail production occurs at the nail

Accepted Answer

A)  body.
B)  bed.
C)  root.
D)  cuticle.
E)  hyponychium.F) A) and B)
G) D) and E)

Question 20

Define hyponychium.

Accepted Answer

A)  A portion of the stratum corneum of the nail root that extends over the exposed nail.
B)  The thickened stratum corneum underlying the free edge of the nail.
C)  An epidermal fold not visible from the surface where nail production occurs.
D)  An area of epidermis that is covered by the nail.
E)  The visible portion of the nail.F) A) and E)
G) C) and E)

Exam 5: The Integumentary System

Why would an elderly person be more prone to skin infections than a younger person?

Correct AnswerverifiedShow Answer

Explain why the rate of dehydration is greater when a person is immersed in seawater than when in fresh water.

Correct AnswerverifiedSalty ocean water is very hypertonic com...View AnswerShow Answer

Many medications can be administered transdermally by applying patches that contain the medication to the surface of the skin.These patches can be attached anywhere on the skin except the palms of the hands and the soles of the feet.Why?

Correct AnswerverifiedThick skin slows the rate of diffusion o...View AnswerShow Answer

Why is pulling a hair painful,yet cutting a hair is not?

Correct AnswerverifiedPulling a hair is painful because its ro...View AnswerShow Answer

Rickets can be prevented by

Correct AnswerverifiedShow Answer

The ________ in keratinocytes protects the epidermis and dermis from the harmful effects of sunlight.

Correct AnswerverifiedShow Answer

________ is a pigment found in vegetables that can make the skin appear orange or yellow.

Correct AnswerverifiedShow Answer

Each of the following is a function of the integumentary system except

Correct AnswerverifiedShow Answer

In some cultures,females must be covered from head to toe when they go outdoors.Explain why these women are at increased risk of developing bone problems later in life.

Correct AnswerverifiedThe hormone cholecalciferol (vitamin D3)...View AnswerShow Answer

In a condition known as sunstroke,the victim appears flushed,the skin is warm and dry,and the body temperature rises dramatically.Explain these observations based on what you know concerning the role of the skin in thermoregulation.

Correct AnswerverifiedWhen the body temperature increases,more...View AnswerShow Answer

All of the following are functions of accessory structures of integument except

Correct AnswerverifiedShow Answer

The most dangerous type of skin cancer is termed

Correct AnswerverifiedShow Answer

At the base of a nail,keratinized skin called the cuticle is also called the

Correct AnswerverifiedShow Answer

Nail production occurs at the nail

Correct AnswerverifiedShow Answer

All of the following are true of perspiration produced by merocrine sweat glands except that it

Correct AnswerverifiedShow Answer

In which layer of skin are keratinocytes produced?

Correct AnswerverifiedShow Answer

Define hyponychium.

Correct AnswerverifiedShow Answer

All of the following are characteristics of the epidermis except that it

Correct AnswerverifiedShow Answer

________ hairs are coarse pigmented hairs.

Correct AnswerverifiedShow Answer

Predict the degree of scarring after the healing of a horizontal cut on the forehead just above the eyebrow.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
Salty ocean water is very hypertonic com...
View Answer

Correct Answer
verified
Thick skin slows the rate of diffusion o...
View Answer

Correct Answer
verified
Pulling a hair is painful because its ro...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The hormone cholecalciferol (vitamin D3)...
View Answer

Correct Answer
verified
When the body temperature increases,more...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified