Question 1

Which durable protein is found in the nails, hair, and epidermis?

Accepted Answer

A)   Melanin
B)   Keratin
C)   Carotene
D)   Elastin
E)   Collagen

Question 2

The subcutaneous tissue is part of the skin and the integumentary system.

Accepted Answer

A) True 
 B)False

Question 3

All of the following statements concerning hair are true except one. Identify the exception.

Accepted Answer

A)   The growth rate of all types of hair is the same.
B)   Hair growth occurs in cycles, with growth and resting stages.
C)   In pattern baldness, those hair follicles present begin to produce vellus hair.
D)   Some loss of hair is normal and indicates old hairs are being pushed out by new hairs.
E)   Genetic factors and testosterone cause pattern baldness.

Question 4

Which of the following skin changes is usually associated with aging?

Accepted Answer

A)   Skin becomes thicker.
B)   There is an increase in the number of elastic fibers in the skin.
C)   Loss of subcutaneous tissue contributes to sagging of the skin.
D)   Localized increase in sebaceous glands leads to dry skin.
E)   The amount of collagen in the dermis increases.

Question 5

Nails

Accepted Answer

A)   protect the ends of digits.
B)   alternate between growing and resting stages.
C)   grow from their free edges.
D)   are part of the dermis.
E)   are soft keratin.

Question 6

Delicate unpigmented hairs that cover the fetus in early development are called ________ hairs.

Accepted Answer

A)   terminal
B)   primary
C)   lanugo
D)   vellus
E)   secondary

Question 7

A genetic disease characterized by the inability to produce melanin is ________.

Accepted Answer

A)   psoriasis
B)   albinism
C)   dermatitis
D)   melanoma
E)   cyanosis

Question 8

Describe the effect of exposure to UV rays on the skin.

Accepted Answer

A)   Decreased cancer risk
B)   Increased melanin synthesis
C)   Improved skin tone
D)   Increased vitamin B production

Question 9

Which of the following statements concerning hair structure is true?

Accepted Answer

A)   Both the hair root and hair shaft contain living cells.
B)   Undamaged hair follicles can help regenerate damaged epithelium.
C)   The hair follicle has a hypodermal root sheath.
D)   The matrix forms the hair surface.
E)   The hair follicle is not associated with sebaceous glands.

Question 10

This condition is characterized by a thicker-than-normal stratus corneum producing large silvery scales.

Accepted Answer

A)   Psoriasis
B)   Decubitus ulcer
C)   Bullae
D)   Vitiligo
E)   Eczema

Question 11

The contraction of the arrector pili

Accepted Answer

A)   pulls the follicle into a more perpendicular position in relation to the skin surface
B)   pulls the follicle into a more oblique angle in relation to the skin surface
C)   does not affect the position of the hair relative to the epidermis.

Question 12

The stratum basale

Accepted Answer

A)   is easily shed when you rub your hands together.
B)   has a mixture of living and dead cells-mostly dead.
C)   contains many blood vessels that nourish the epidermis.
D)   contains cells that undergo mitosis to form new epidermal cells.
E)   contains cells that undergo meiosis to form new epidermal cells.

Question 13

A subcutaneous injection delivers medication into the ________.

Accepted Answer

A)   epidermis
B)   dermis
C)   subcutaneous layer
D)   muscle
E)   joint

Question 14

The layer of the epidermis in which there is the greatest amount of mitotic activity is the ________.

Accepted Answer

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

Question 15

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

Accepted Answer

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

Question 16

Which of the following functions is associated with the skin?

Accepted Answer

A)   Lipid production
B)   Vitamin C production
C)   Regulation of body pH
D)   Protection against ultraviolet radiation of the sun
E)   Vitamin A production

Question 17

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

Accepted Answer

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

Question 18

The portion of the hair that extends above the surface of the skin is the ________.

Accepted Answer

A)   shaft
B)   cuticle
C)   hair bulb
D)   medulla
E)   root

Question 19

The nail is composed of cells of the ________.

Accepted Answer

A)   stratum corneum
B)   stratum lucidum
C)   stratum basale
D)   stratum spinosum
E)   All of the choices are correct.

Question 20

Lead poisoning can be detected by doing an analysis of ________.

Accepted Answer

A)   sweat
B)   skin folds
C)   nails
D)   hair
E)   skin

Exam 5: Integumentary System

All of the following statements concerning hair are true except one. Identify the exception.

Correct AnswerverifiedShow Answer

Describe the effect of exposure to UV rays on the skin.

Correct AnswerverifiedShow Answer

The layer of the epidermis in which there is the greatest amount of mitotic activity is the ________.

Correct AnswerverifiedShow Answer

A subcutaneous injection delivers medication into the ________.

Correct AnswerverifiedShow Answer

A genetic disease characterized by the inability to produce melanin is ________.

Correct AnswerverifiedShow Answer

The nail is composed of cells of the ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Nails

Correct AnswerverifiedShow Answer

Which of the following skin changes is usually associated with aging?

Correct AnswerverifiedShow Answer

Which durable protein is found in the nails, hair, and epidermis?

Correct AnswerverifiedShow Answer

Which of the following statements concerning hair structure is true?

Correct AnswerverifiedShow Answer

Which of the following functions is associated with the skin?

Correct AnswerverifiedShow Answer

Lead poisoning can be detected by doing an analysis of ________.

Correct AnswerverifiedShow Answer

The portion of the hair that extends above the surface of the skin is the ________.

Correct AnswerverifiedShow Answer

This condition is characterized by a thicker-than-normal stratus corneum producing large silvery scales.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The stratum basale

Correct AnswerverifiedShow Answer

Delicate unpigmented hairs that cover the fetus in early development are called ________ hairs.

Correct AnswerverifiedShow Answer

The contraction of the arrector pili

Correct AnswerverifiedShow Answer

The subcutaneous tissue is part of the skin and the integumentary system.

Correct AnswerverifiedShow Answer

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