Question 1

Two patients are brought to the emergency room.One has cut his finger with a knife; the other has stepped on a nail.Which wound has a greater chance of becoming infected? Why?

Accepted Answer

The puncture wound has a greater chance ...

Question 2

A thickened area of scar tissue that is covered by a shiny,smooth epidermal surface is called a(n)

Accepted Answer

A)   granulation tissue.
B)   scab.
C)   keloid.
D)   callus.
E)   abrasion.

Question 3

Figure 5-1 The General Structure of the Integumentary System
Use Figure 5-1 for the following questions:
-Structure B on the skin diagram is the

Accepted Answer

A)   epidermis.
B)   dermis.
C)   subcutaneous layer.
D)   cutaneous membrane.
E)   hypodermis.

Question 4

Melanin serves to protect cells in the deeper layers of the epidermis from

Accepted Answer

A)   discoloration.
B)   melanocyte activity.
C)   albinism.
D)   ultraviolet radiation.
E)   keratin production.

Question 5

Photo Credit: Robert B. Tallitsch
Figure 5-2 The Strata of the Epidermis in Thick Skin
Use Figure 5-2 to answer the following questions:
-The lowest level of cells of the strata,marked E,consists of

Accepted Answer

A)   keratin protein.
B)   collagen fibers.
C)   dead cells.
D)   carotene-producing cells.
E)   mitotically active epithelial cells.

Question 6

The epidermal layer whose cells have stopped dividing and started to produce large amounts of keratin is the

Accepted Answer

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

Question 7

The function of the secretion of a sebaceous gland is

Accepted Answer

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

Question 8

In albinism,________ is lacking.

Accepted Answer

A)   melanin
B)   keratin
C)   carotene
D)   keratinocytes
E)   collagen

Question 9

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

The palms of the hands and the soles of ...

Question 10

Figure 5-3 A Single Hair Follicle and Hair (Longitudinal Section) 
Use Figure 5-3 to answer the following questions:
-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.

Question 11

When the arrector pili muscles contract,

Accepted Answer

A)   "goose bumps" are formed.
B)   hairs are shed.
C)   sweat is released from sweat glands.
D)   shivering occurs.
E)   the skin changes color.

Question 12

The subcutaneous layer consists of

Accepted Answer

A)   epithelial and adipose tissues.
B)   areolar and adipose tissues.
C)   dense connective and loose connective tissues.
D)   epithelium and loose connective tissues.
E)   skeletal muscles and adipose tissue.

Question 13

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 14

The fold of stratum corneum over the base of a nail is called the

Accepted Answer

A)   body.
B)   bed.
C)   root.
D)   cuticle.
E)   free edge.

Question 15

Which is the most logical reason for an elderly person's higher potential to be prone to skin infections,compared to a younger person?

Accepted Answer

A)   The hair is thinner in the elderly.
B)   There are fewer melanocytes in the skin of a younger person.
C)   The blood supply to the dermis is reduced in the skin of a young person.
D)   Bone strength decreases in the elderly.
E)   Stem cell activity in the epidermis declines in the elderly.

Question 16

When the body is overheated,the skin responds by

Accepted Answer

A)   decreasing melanin production.
B)   losing oxygen to surrounding tissues.
C)   constricting blood vessels.
D)   dilating blood vessels.
E)   increasing keratin production.

Question 17

When a person becomes "pale," what is the physiologic basis?

Accepted Answer

A)   The blood supply to the skin increases.
B)   The number of red melanocytes in the skin increases.
C)   Melanocytes increase production of red pigments.
D)   The blood supply to the skin decreases.
E)   Increased heat causes the skin to turn red.

Question 18

The walls of each hair follicle contain all the cell layers found in which of the following?

Accepted Answer

A)   hypodermis
B)   dermis
C)   subcutaneous layer
D)   epidermis
E)   basement membrane

Question 19

Drugs suspended in ________ or ________ can be carried across the plasma membranes of the epidermal cells.

Accepted Answer

A)   water; blood
B)   water; lipids
C)   oils; alcohol
D)   oils; lipid-soluble solvents
E)   sebum; water

Question 20

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.

Exam 5: The Integumentary System

In albinism,________ is lacking.

Correct AnswerverifiedShow Answer

Which is the most logical reason for an elderly person's higher potential to be prone to skin infections,compared to a younger person?

Correct AnswerverifiedShow Answer

What is the function of melanin?

Correct AnswerverifiedShow Answer

The fold of stratum corneum over the base of a nail is called the

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 subcutaneous layer consists of

Correct AnswerverifiedShow Answer

Drugs suspended in ________ or ________ can be carried across the plasma membranes of the epidermal cells.

Correct AnswerverifiedShow Answer

Figure 5-3 A Single Hair Follicle and Hair (Longitudinal Section) Use Figure 5-3 to answer the following questions: -The function of structure E is

Correct AnswerverifiedShow Answer

Two patients are brought to the emergency room.One has cut his finger with a knife; the other has stepped on a nail.Which wound has a greater chance of becoming infected? Why?

Correct AnswerverifiedThe puncture wound has a greater chance ...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 AnswerverifiedThe palms of the hands and the soles of ...View AnswerShow Answer

The walls of each hair follicle contain all the cell layers found in which of the following?

Correct AnswerverifiedShow Answer

A thickened area of scar tissue that is covered by a shiny,smooth epidermal surface is called a(n)

Correct AnswerverifiedShow Answer

Photo Credit: Robert B. Tallitsch Figure 5-2 The Strata of the Epidermis in Thick Skin Use Figure 5-2 to answer the following questions: -The lowest level of cells of the strata,marked E,consists of

Correct AnswerverifiedShow Answer

When a person becomes "pale," what is the physiologic basis?

Correct AnswerverifiedShow Answer

When the arrector pili muscles contract,

Correct AnswerverifiedShow Answer

When the body is overheated,the skin responds by

Correct AnswerverifiedShow Answer

Figure 5-1 The General Structure of the Integumentary System Use Figure 5-1 for the following questions: -Structure B on the skin diagram is the

Correct AnswerverifiedShow Answer

Melanin serves to protect cells in the deeper layers of the epidermis from

Correct AnswerverifiedShow Answer

The function of the secretion of a sebaceous gland is

Correct AnswerverifiedShow Answer

The epidermal layer whose cells have stopped dividing and started to produce large amounts of keratin is the

Correct AnswerverifiedShow Answer

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

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Drugs suspended in or can be carried across the plasma membranes of the epidermal cells.

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The puncture wound has a greater chance ...
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The palms of the hands and the soles of ...
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Correct Answer
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