Question 1

A hair cycle consists of three developmental stages in which order?

Accepted Answer

A)   Anagen,telogen,and catagen
B)   Anagen,catagen,and telogen
C)   Catagen,anagen,and telogen
D)   Catagen,telogen,and anagen
E)   Telogen,anagen,and catagenF) B) and C)
G) A) and C)

Question 2

Mammary glands are modified __________ glands that develop within the female breasts.

Accepted Answer

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

Question 3

The acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the skin.

Accepted Answer

A) True 
 B)False

Question 4

The narrow zone of dead skin overhanging the proximal end of a nail is called the __________.

Accepted Answer

A)   eponychium
B)   lunule
C)   nail plate
D)   nail body
E)   nail rootF) A) and B)
G) A) and C)

Question 5

The reddish color of the skin of the lips is primarily due to the presence of which pigment?

Accepted Answer

A)   Hemoglobin
B)   Myoglobin
C)   Melanin
D)   Carotene
E)   KeratinF) B) and D)
G) A) and E)

Question 6

The base where a hair follicle originates in the skin is known as the __________.

Accepted Answer

A)   hair bulb
B)   hair root
C)   shaft
D)   medulla
E)   cuticleF) B) and E)
G) A) and B)

Question 7

Which of the following are associated with the sense of touch?

Accepted Answer

A)   Fibroblasts
B)   Melanocytes
C)   Keratinocytes
D)   Dendritic cells
E)   Tactile cellsF) None of the above
G) A) and B)

Question 8

Blood vessels in the __________ provide a hair with its sole source of nutrition.

Accepted Answer

A)   bulb
B)   root
C)   shaft
D)   dermal papilla
E)   medullaF) None of the above
G) A) and D)

Question 9

Which skin color is most likely to result from anemia?

Accepted Answer

A)   Pallor
B)   Erythema
C)   Hematoma
D)   Albinism
E)   JaundiceF) C) and D)
G) D) and E)

Question 10

Which of the following cells stand guard against toxins,microbes and other pathogens?

Accepted Answer

A)   Keratinocytes
B)   Melanocytes
C)   Adipocytes
D)   Dendritic cells
E)   Tactile cellsF) B) and E)
G) A) and D) D

Question 11

Variations in hair color arise from differing amounts of __________.

Accepted Answer

A)   collagen and elastic filaments
B)   keratin and melanin
C)   carotene and hemoglobin
D)   carotene and collagen
E)   eumelanin and pheomelaninF) A) and D)
G) C) and E)

Question 12

The "ABCD rule" for recognizing early signs of malignant melanoma refers to which of the following characteristics of the lesion?

Accepted Answer

A)   Asymmetry,border irregularity,color,and diameter
B)   Asymmetry,brightness,color,and diameter
C)   Aspect,brightness,color,and distance
D)   Aspect,border irregularity,color,and distance
E)   Area,border irregularity,color,and densityF) A) and B)
G) C) and D)

Question 13

Most of the skin is __________ mm thick.

Accepted Answer

A)   0.01 to 0.02
B)   0.1 to 0.2
C)   1 to 2
D)   10 to 20
E)   100 to 200F) A) and E)
G) A) and B)

Question 14

The contraction of the piloerector muscles (pilomotor muscle or arrector pili) in humans causes __________.

Accepted Answer

A)   hairs to stand on end,trapping an insulating layer of warm air next to the skin
B)   generation of heat to raise the body temperature
C)   hairs to stand on end to make the individual appear bigger
D)   hairs to stand on end with no apparent function
E)   increased ability to feel painF) A) and B)
G) A) and C)

Question 15

__________ is/are formed partly from the secretions of glands in the external ear canal.

Accepted Answer

A)   Sebum
B)   Cerumen
C)   Sweat
D)   Scents
E)   MucusF) A) and D)
G) D) and E)

Question 16

The __________ is absent from most epidermis.

Accepted Answer

A)   stratum basale
B)   stratum spinosum
C)   stratum granulosum
D)   stratum lucidum
E)   stratum corneumF) A) and D)
G) A) and E)

Question 17

Each hair grows in an oblique epithelial tube called a(an) __________.

Accepted Answer

A)   hair follicle
B)   vellum
C)   pilus
D)   bulb
E)   shaftF) A) and B)
G) A) and C)

Question 18

Which two strata of the epidermis are most susceptible to cancer?

Accepted Answer

A)   Stratum corneum and stratum lucidum
B)   Stratum basale and stratum corneum
C)   Stratum spinosum and stratum basale
D)   Stratum granulosum and stratum spinosum
E)   Stratum lucidum and stratum granulosumF) A) and C)
G) B) and C) C

Question 19

A __________ is an elevated patch of melanized skin.

Accepted Answer

A)   hemangioma
B)   mole
C)   freckle
D)   flexion line
E)   friction ridgeF) A) and C)
G) A) and B)

Question 20

The skin is a barrier to all of the following except __________.

Accepted Answer

A)   metals such as mercury
B)   infectious organisms
C)   water
D)   UV raysE) None of the above
F) B) and C)

Exam 6: The Integumentary System

A hair cycle consists of three developmental stages in which order?

Correct AnswerverifiedShow Answer

Mammary glands are modified __________ glands that develop within the female breasts.

Correct AnswerverifiedB

The acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the skin.

Correct AnswerverifiedShow Answer

The narrow zone of dead skin overhanging the proximal end of a nail is called the __________.

Correct AnswerverifiedShow Answer

The reddish color of the skin of the lips is primarily due to the presence of which pigment?

Correct AnswerverifiedShow Answer

The base where a hair follicle originates in the skin is known as the __________.

Correct AnswerverifiedShow Answer

Which of the following are associated with the sense of touch?

Correct AnswerverifiedShow Answer

Blood vessels in the __________ provide a hair with its sole source of nutrition.

Correct AnswerverifiedShow Answer

Which skin color is most likely to result from anemia?

Correct AnswerverifiedShow Answer

Which of the following cells stand guard against toxins,microbes and other pathogens?

Correct AnswerverifiedD

Variations in hair color arise from differing amounts of __________.

Correct AnswerverifiedShow Answer

The "ABCD rule" for recognizing early signs of malignant melanoma refers to which of the following characteristics of the lesion?

Correct AnswerverifiedShow Answer

Most of the skin is __________ mm thick.

Correct AnswerverifiedShow Answer

The contraction of the piloerector muscles (pilomotor muscle or arrector pili) in humans causes __________.

Correct AnswerverifiedShow Answer

__________ is/are formed partly from the secretions of glands in the external ear canal.

Correct AnswerverifiedShow Answer

The __________ is absent from most epidermis.

Correct AnswerverifiedShow Answer

Each hair grows in an oblique epithelial tube called a(an) __________.

Correct AnswerverifiedShow Answer

Which two strata of the epidermis are most susceptible to cancer?

Correct AnswerverifiedC

A __________ is an elevated patch of melanized skin.

Correct AnswerverifiedShow Answer

The skin is a barrier to all of the following except __________.

Correct AnswerverifiedShow Answer

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B

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D

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C

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