Question 1

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

Accepted Answer

A)   Hair follicle
B)   Arrector pili
C)   Epidermis and dermis
D)   Subcutaneous tissue
E)   Sebaceous glandF) B) and D)
G) C) and D)

Question 2

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

Accepted Answer

A)   melanin
B)   keratin
C)   collagen
D)   carotene
E)   elastinF) C) and E)
G) A) and D)

Question 3

Excessive shedding of this layer of the epidermis of the scalp is responsible for dandruff.

Accepted Answer

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

Question 4

This stratum contains many layers of dead squamous cells.

Accepted Answer

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

Question 5

-The figure illustrates the layers of the epidermis. Which layer of the epidermis is "C"?

Accepted Answer

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

Question 6

The proximal portion of the nail is the ________.

Accepted Answer

A)   nail root
B)   nail body
C)   nail fold
D)   eponychium
E)   hyponychiumF) A) and C)
G) A) and D)

Question 7

The dermis

Accepted Answer

A)   contains no blood vessels.
B)   functions as padding and insulation.
C)   is divided into three distinct layers.
D)   is responsible for most of the skin's structural strength.
E)   does not contain connective tissue.F) A) and E)
G) C) and D)

Question 8

One type of experimental contraceptive device is a skin patch that contains a chemical absorbed through the skin. Which of the following substances might be the type of chemical involved?

Accepted Answer

A)   Proteins
B)   Water-soluble substances
C)   Lipid-soluble substances
D)   Carbohydrates
E)   Amino acidsF) A) and D)
G) None of the above

Question 9

Name the layer from which fingernails and toenails are derived.

Accepted Answer

A)   Dermis
B)   Epidermis
C)   Subcutaneous tissueD) All of the above
E) A) and C)

Question 10

The length of hair is determined by the

Accepted Answer

A)   size of the hair bulb.
B)   angle of the hair root.
C)   rate of hair growth.
D)   length of the resting stage.
E)   age of the person.F) C) and E)
G) B) and E)

Question 11

A skin cell in the stratum granulosum has experienced a mutation that altered its ability to produce keratin. Should this be a health concern for the individual?

Accepted Answer

A)   No, because cells of the stratum granulosum are dying cells that do not reproduce, so the mutation will be isolated to the one cell.
B)   Yes, because cells of the stratum granulosum divide by mitosis to produce keratin to protect the skin.
C)   No, cells of the stratum granulosum only produce the waterproofing material in the skin.
D)   Yes, without normal cell function in the stratum granulosum, the skin will lose color due to lack of melanin production.E) All of the above
F) A) and B)

Question 12

Nail cells are produced by the ________.

Accepted Answer

A)   lunula
B)   cuticle
C)   nail body
D)   nail matrix
E)   nail grooveF) A) and D)
G) C) and D)

Question 13

On coming inside from the cold, students notice that their cheeks are red. This results from

Accepted Answer

A)   constriction of the blood vessels in the epidermis of the cheeks.
B)   dilation of the blood vessels in the dermis of the cheeks.
C)   damage to the epidermis by the cold.
D)   constriction of the sweat glands in the cheeks.
E)   increased permeability of superficial vessels.F) B) and D)
G) All of the above

Question 14

A burn classified as partial thickness could be ________.

Accepted Answer

A)   first or second degree
B)   second or third degree
C)   epidermal or dermal
D)   thin or deepE) All of the above
F) B) and C)

Question 15

Adipose tissue in the subcutaneous layer

Accepted Answer

A)   serves as a storage site for lipids, which can be used for energy.
B)   helps to lower body temperature.
C)   provides protection against infection.
D)   is absent in infants.
E)   connects the dermis with the epidermis.F) B) and D)
G) D) and E)

Question 16

Impetigo is caused by the bacterium ________.

Accepted Answer

A)   Propionibacterium
B)   Staphylococcus
C)   Streptococcus
D)   Herpes
E)   LuteusF) A) and B)
G) B) and C)

Question 17

Melanin is found in which cells?

Accepted Answer

A)   Only melanocytes
B)   Both melanocytes and keratinocytes
C)   Only keratinocytes
D)   Both melanocytes and Langerhans cellsE) None of the above
F) A) and D)

Question 18

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

Accepted Answer

A)   excretion
B)   immunity
C)   circulation
D)   respiration
E)   digestionF) A) and B)
G) None of the above

Question 19

Indicate the statements that correctly describe partial thickness burns. (Check all that apply.)

Accepted Answer

A)   They are subdivided into first- and second-degree burns.
B)   They may involve only the epidermis.
C)   They are also called third degree burns.
D)   They involve the complete destruction of the epidermis and dermis.E) C) and D)
F) All of the above

Question 20

Intact skin provides protection because

Accepted Answer

A)   it forms a physical barrier against the entry of microbes.
B)   its secretions keep the skin slightly alkaline.
C)   the skin contains components of the excretory system.
D)   the skin enhances water loss from the body.
E)   macrophages roam in the epidermis.F) None of the above
G) B) and D)

Exam 5: Integumentary System

A burn classified as partial thickness could be ________.

Correct AnswerverifiedShow Answer

This stratum contains many layers of dead squamous cells.

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Indicate the statements that correctly describe partial thickness burns. (Check all that apply.)

Correct AnswerverifiedShow Answer

Excessive shedding of this layer of the epidermis of the scalp is responsible for dandruff.

Correct AnswerverifiedShow Answer

Adipose tissue in the subcutaneous layer

Correct AnswerverifiedShow Answer

The dermis

Correct AnswerverifiedShow Answer

Melanin is found in which cells?

Correct AnswerverifiedShow Answer

Impetigo is caused by the bacterium ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A skin cell in the stratum granulosum has experienced a mutation that altered its ability to produce keratin. Should this be a health concern for the individual?

Correct AnswerverifiedShow Answer

The length of hair is determined by the

Correct AnswerverifiedShow Answer

Name the layer from which fingernails and toenails are derived.

Correct AnswerverifiedShow Answer

Nail cells are produced by the ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

-The figure illustrates the layers of the epidermis. Which layer of the epidermis is "C"?

Correct AnswerverifiedShow Answer

The proximal portion of the nail is the ________.

Correct AnswerverifiedShow Answer

One type of experimental contraceptive device is a skin patch that contains a chemical absorbed through the skin. Which of the following substances might be the type of chemical involved?

Correct AnswerverifiedShow Answer

On coming inside from the cold, students notice that their cheeks are red. This results from

Correct AnswerverifiedShow Answer

Intact skin provides protection because

Correct AnswerverifiedShow Answer

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