Question 1

By covering the whole body surface,the skin acts as a protective barrier and plays a role in

Accepted Answer

A)  respiration.
B)  circulation.
C)  digestion.
D)  excretion.
E)  immunity.F) A) and E)
G) B) and C)

Question 2

Intact skin provides protection because

Accepted Answer

A)  the skin enhances water loss from the body.
B)  macrophages roam in the epidermis.
C)  its secretions keep the skin slightly alkaline.
D)  the skin contains components of the excretory system.
E)  it forms a physical barrier against the entry of microbes.F) A) and E)
G) C) and E)

Question 3

An expanded knob at the base of the hair root is the

Accepted Answer

A)  medulla.
B)  cuticle.
C)  hair bulb.
D)  root.
E)  shaft.F) All of the above
G) C) and D)

Question 4

The bluish tinge of skin due to a reduction of oxygen in the blood is called

Accepted Answer

A)  desquamation.
B)  hemolysis.
C)  cyanosis.
D)  carotenosis.
E)  albinism.F) A) and E)
G) C) and E)

Question 5

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

Accepted Answer

A)  arrector pili
B)  hypodermis
C)  sebaceous gland
D)   epidermis and dermis
E)  hair follicleF) C) and D)
G) A) and E)

Question 6

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

Accepted Answer

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

Question 7

What will develop when the skin is subjected to excess friction or pressure?

Accepted Answer

A)  papillae
B)  stretch marks
C)  callus
D)  melanoma
E)  carcinomaF) B) and E)
G) A) and B)

Question 8

A yellow pigment derived from plants that can impart a yellow color to the skin is

Accepted Answer

A)  albinism.
B)  cyanosis.
C)  carotene.
D)  dermatitis.
E)  melanosomes.F) B) and C)
G) All of the above

Question 9

Which of the following statements regarding melanin is true?

Accepted Answer

A)  Men produce more melanin than women.
B)  In Addison's disease,less melanin is produced.
C)  During pregnancy melanin production is increased.
D)  Both melanocytes and keratinocytes produce melanin.
E)  Melanin is a white pigment.F) B) and E)
G) A) and B)

Question 10

Eccrine sweat glands

Accepted Answer

A)  are not involved in the homeostasis of body temperature.
B)  produce a secretion that oils the hair and skin.
C)  serve as "anchors" for the arrector pili muscles.
D)  produce a secretion that protects the body from growth of bacteria.
E)  aid in cooling the body.F) B) and C)
G) C) and D)

Question 11

Due to the contraction of smooth muscle in the walls of the dermal blood vessels,

Accepted Answer

A)  body heat is conserved.
B)  more blood enters into the heart.
C)  more blood flows to the skin.
D)  body temperature tends to drop in that area.
E)  the blood vessels become dilated.F) D) and E)
G) C) and E)

Question 12

Cedric slipped and cut his finger.The cut bled,but did not penetrate to the hypodermis.The deepest layer penetrated was the

Accepted Answer

A)  stratum corneum.
B)  papillary layer of the dermis.
C)  stratum spinosum.
D)  stratum basale.
E)  stratum granulosum.F) B) and D)
G) B) and E)

Question 13

An increase in body temperature causes

Accepted Answer

A)  sweating.
B)  an increase in melanin production.
C)  an increase in keratinization of the skin.
D)  arterioles in the dermis to constrict.
E)  arrector pili muscles to contract.F) None of the above
G) D) and E)

Question 14

As skin cells move toward the surface of the body,they produce a protein that reduces water loss.This process is called

Accepted Answer

A)  desquamation.
B)  pollination.
C)  keratinization.
D)  germination.
E)  melaninization.F) A) and B)
G) D) and E)

Question 15

A slight sunburn is an example of a ______ burn.

Accepted Answer

A)  third-degree
B)  fourth-degree
C)  partial-thickness
D)  first-degree
E)  second-degreeF) A) and D)
G) A) and C)

Question 16

Which of the following statements is true?

Accepted Answer

A)  Hair in the axillary region is vellus hair after puberty.
B)  At puberty,much of the vellus hair is replaced with terminal hair.
C)  Both vellus and terminal hairs are pigmented.
D)  In males,the hairs of the beard are vellus hairs.
E)  The majority of hair on the chest is vellus hair.F) A) and B)
G) B) and E)

Question 17

The distal portion of the nail is the

Accepted Answer

A)  nail body.
B)  eponychium.
C)  nail fold.
D)  hyponychium.
E)  nail root.F) C) and D)
G) B) and C)

Question 18

Which of the following statements concerning the hypodermis is false?

Accepted Answer

A)  The hypodermis attaches the skin to underlying bone and muscle.
B)  Hypodermis is composed of dense connective tissue with collagen and elastin fibers.
C)  Hypodermis is referred to as subcutaneous tissue.
D)  The main cell types of the hypodermis are fibroblasts,fat cells,and macrophages.
E)  The hypodermis is a site of fat storage.F) A) and B)
G) None of the above

Question 19

The skin that covers the lateral and proximal edges of the nail is the

Accepted Answer

A)  hyponychium.
B)  nail root.
C)  nail fold.
D)  eponychium.
E)  nail body.F) A) and E)
G) B) and D)

Question 20

At birth the hairs of the scalp,eyelids,and eyebrows are replaced by coarser pigmented hairs called

Accepted Answer

A)  lanugo hairs.
B)  primary hairs.
C)  pubic hairs.
D)  vellus hairs.
E)  terminal hairs.F) A) and E)
G) D) and E)

Exam 5: Integumentary System

A yellow pigment derived from plants that can impart a yellow color to the skin is

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Due to the contraction of smooth muscle in the walls of the dermal blood vessels,

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Eccrine sweat glands

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What will develop when the skin is subjected to excess friction or pressure?

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The skin that covers the lateral and proximal edges of the nail is the

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Intact skin provides protection because

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The bluish tinge of skin due to a reduction of oxygen in the blood is called

Correct AnswerverifiedShow Answer

By covering the whole body surface,the skin acts as a protective barrier and plays a role in

Correct AnswerverifiedShow Answer

The distal portion of the nail is the

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A slight sunburn is an example of a ______ burn.

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

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Which of the following statements concerning the hypodermis is false?

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As skin cells move toward the surface of the body,they produce a protein that reduces water loss.This process is called

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At birth the hairs of the scalp,eyelids,and eyebrows are replaced by coarser pigmented hairs called

Correct AnswerverifiedShow Answer

Which of the following statements is true?

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Cedric slipped and cut his finger.The cut bled,but did not penetrate to the hypodermis.The deepest layer penetrated was the

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

Correct AnswerverifiedShow Answer

Which of the following statements regarding melanin is true?

Correct AnswerverifiedShow Answer

An increase in body temperature causes

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An expanded knob at the base of the hair root is the

Correct AnswerverifiedShow Answer

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