Question 1

In other mammals,the ________ glands function as scent glands,providing an important form of communication.

Accepted Answer

A)  eccrine
B)  sebaceous
C)  apocrine
D)  mammary
E)  merocrineF) B) and C)
G) A) and B)

Question 2

Which statement is correct?

Accepted Answer

A)  Using expensive hair products can enhance the mitotic growth of hair cells within the shaft.
B)  A hair shaft is made of varying densities and consistencies of keratin.
C)  All hairs have the same growth cycle until mid-life.
D)  Carotene is the major pigment that colors hair shafts.
E)  Any hair loss signifies a medical condition,which should be checked by a doctor.F) B) and E)
G) B) and D)

Question 3

A hair shaft is composed of

Accepted Answer

A)  melanin.
B)  carotene.
C)  starch.
D)  lipid.
E)  keratin.F) A) and C)
G) All of the above

Question 4

The protein that contributes to many of the skin's protective qualities is called

Accepted Answer

A)  melanin.
B)  keratin.
C)  carotene.
D)  dermicidin.
E)  calcitriol.F) A) and E)
G) B) and C)

Question 5

What is the function of melanin?

Accepted Answer

A)  It provides water-resistant properties to the integument.
B)  It continuously divides to replace cells that are lost or shed at the epithelial surface.
C)  It is converted by the kidneys into the hormone calcitriol.
D)  It is required for the normal maintenance of epithelial cells.
E)  It protects DNA from the damaging effects of ultraviolet radiation.F) C) and E)
G) B) and E)

Question 6

Epidermal cells are supplied with nutrients from blood vessels in the

Accepted Answer

A)  dermis.
B)  epidermis.
C)  hypodermis.
D)  epidermis and dermis.
E)  subcutaneous layer.F) C) and D)
G) A) and B)

Question 7

Projections of loose connective tissue from the dermis,which extend upward between the adjacent ridges of the epidermis,are called

Accepted Answer

A)  epidermal ridges.
B)  strata.
C)  reticular layers.
D)  accessory structures.
E)  dermal papillae.F) B) and E)
G) C) and D)

Question 8

The type of burn that injures the hypodermis,deeper tissues,and organs is a

Accepted Answer

A)  first-degree burn.
B)  second-degree burn.
C)  third-degree burn.
D)  partial-thickness burn.
E)  semi-partial-thickness burn.F) D) and E)
G) A) and B)

Question 9

The reticular layer's collagen fibers directly provide which function?

Accepted Answer

A)  prevent damage to the tissue
B)  nourish the epidermis
C)  provide flexibility
D)  provide sensory information
E)  increase surface area of the dermisF) A) and E)
G) B) and E)

Question 10

Elderly people tend to have rougher skin and more brittle hair than younger people.What structure is associated with this problem?

Accepted Answer

A)  merocrine glands
B)  sebaceous glands
C)  ceruminous glands
D)  apocrine glands
E)  eccrine glandsF) All of the above
G) C) and D)

Question 11

Through which mechanism does perspiration function in cooling the body?

Accepted Answer

A)  conduction
B)  evaporation
C)  convection
D)  radiation
E)  diffusionF) A) and E)
G) A) and B)

Question 12

The highly vascular layer of the skin,which provides thermoregulation via changing blood flow,is the

Accepted Answer

A)  epidermis.
B)  subcutaneous layer.
C)  stratum basale.
D)  stratum corneum.
E)  dermis.F) A) and B)
G) A) and E)

Question 13

Which of the following is the correct order of the layers of the cutaneous membrane?

Accepted Answer

A)  epidermis,hypodermis,dermis
B)  dermis,epidermis,hypodermis
C)  epidermis,dermis,hypodermis
D)  hypodermis,dermis,epidermis
E)  dermis,hypodermis,dermisF) A) and B)
G) D) and E)

Question 14

The ________ layer of the dermis contains bundles of collagen fibers and elastin,and is responsible for the mechanical strength and flexibility of the skin.

Accepted Answer

A)  germinative
B)  reticular
C)  subcutaneous
D)  papillary
E)  cornealF) D) and E)
G) None of the above

Question 15

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

Accepted Answer

When the body temperature increases,more...

Question 16

A small amount of ultraviolet radiation is beneficial because it

Accepted Answer

A)  increases blood flow in the dermis.
B)  stimulates the synthesis of photoreceptor pigments in the eye.
C)  constricts blood vessels in the dermis.
D)  stimulates vitamin D3 synthesis in the epidermis.
E)  adjusts overall gland secretion rates in the body.F) C) and D)
G) A) and C)

Question 17

The pale crescent area of the nail is called the

Accepted Answer

A)  nail root.
B)  nail bed.
C)  lunula.
D)  free edge.
E)  cuticle.F) C) and D)
G) A) and B)

Question 18

The function of the secretion of a sebaceous gland is

Accepted Answer

A)  cell lysis.
B)  thermoregulation.
C)  lubrication.
D)  contraction.
E)  energy.F) A) and C)
G) A) and D)

Question 19

Choose the correct order of the cell layers,or strata,in a section of thick skin,from the basement membrane toward the free surface (deep to superficial) . 1.stratum lucidum
2.stratum basale
3.stratum corneum
4.stratum granulosum
5.stratum spinosum

Accepted Answer

A)  3,5,4,1,2
B)  3,4,1,5,2
C)  2,1,4,5,3
D)  2,4,5,3,1
E)  2,5,4,1,3F) A) and B)
G) B) and E)

Question 20

The function of structure E is

Accepted Answer

A)  to attach the hair shaft firmly to the dermis so that it does not move.
B)  the deposition of high concentrations of melanin to color the hair shaft.
C)  the production of new cells that will make the hair shaft longer.
D)  the production of hormones that can affect the growth cycles of the hair follicle.
E)  to change the orientation of the hair shaft.F) B) and E)
G) B) and C)

Exam 5: The Integumentary System

Which of the following is the correct order of the layers of the cutaneous membrane?

Correct AnswerverifiedShow Answer

Elderly people tend to have rougher skin and more brittle hair than younger people.What structure is associated with this problem?

Correct AnswerverifiedShow Answer

Epidermal cells are supplied with nutrients from blood vessels in the

Correct AnswerverifiedShow Answer

Through which mechanism does perspiration function in cooling the body?

Correct AnswerverifiedShow Answer

The type of burn that injures the hypodermis,deeper tissues,and organs is a

Correct AnswerverifiedShow Answer

A small amount of ultraviolet radiation is beneficial because it

Correct AnswerverifiedShow Answer

The ________ layer of the dermis contains bundles of collagen fibers and elastin,and is responsible for the mechanical strength and flexibility of the skin.

Correct AnswerverifiedShow Answer

Choose the correct order of the cell layers,or strata,in a section of thick skin,from the basement membrane toward the free surface (deep to superficial) . 1.stratum lucidum 2.stratum basale 3.stratum corneum 4.stratum granulosum 5.stratum spinosum

Correct AnswerverifiedShow Answer

Projections of loose connective tissue from the dermis,which extend upward between the adjacent ridges of the epidermis,are called

Correct AnswerverifiedShow Answer

What is the function of melanin?

Correct AnswerverifiedShow Answer

In other mammals,the ________ glands function as scent glands,providing an important form of communication.

Correct AnswerverifiedShow Answer

A hair shaft is composed of

Correct AnswerverifiedShow Answer

The pale crescent area of the nail is called the

Correct AnswerverifiedShow Answer

The function of structure E is

Correct AnswerverifiedShow Answer

The highly vascular layer of the skin,which provides thermoregulation via changing blood flow,is the

Correct AnswerverifiedShow Answer

The protein that contributes to many of the skin's protective qualities is called

Correct AnswerverifiedShow Answer

The function of the secretion of a sebaceous gland is

Correct AnswerverifiedShow Answer

Which statement is correct?

Correct AnswerverifiedShow Answer

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

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

The reticular layer's collagen fibers directly provide which function?

Correct AnswerverifiedShow Answer

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

Correct Answer
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