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NUR 154 Final exam > Integumentary system Week 11 > Flashcards

Integumentary system Week 11 Flashcards

1
Q
  1. An “albino” individual lacks the ability to produce
A) melanin.      
B) keratin.
C) carotene.
D) perspiration.
E) eleidin.
A

A

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2
Q
  1. The layer of the skin that contains the blood vessels and nerves closest to the surface of the skin is the ____________ layer.
A) papillary      
B) reticular
C) epidermal
D) subcutaneous
E) hypodermal
A

A

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3
Q
  1. All of the following are true of the subcutaneous layer, except

A) it contains many blood vessels.
B) it permits independent movement of deeper structures.
C) it contains large amounts of adipose tissue.
D) it is attached to the dermis by a basement membrane.
E) it is well supplied with nerves that pass into the skin.

A

D

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4
Q
  1. Variations in hair colour reflect differences in the pigment produced by
A) keratinocytes.
B) melanocytes.      
C) dermal papillae.
D) soft keratin.
E) carotene cells.
A

B

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5
Q
  1. Glands that discharge an oily secretion into hair follicles are ________________ glands.
A) ceruminous
B) apocrine sweat
C) merocrine sweat
D) sebaceous      
E) mammary
A

D

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6
Q
  1. The primary function of sensible perspiration is to
A) protect the skin from excess ultraviolet radiation.
B) heat the skin surface.
C) raise the temperature of the skin.
D) cool the surface of the skin.      
E) reduce insensible perspiration.
A

D

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7
Q
  1. Sweat tastes salty because of its
A) water.
B) metabolites.
C) waste products.
D) electrolytes.      
E) acidic pH.
A

D

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8
Q
  1. In an extensive wound, _________________ divide producing mobile cells that invade the deeper areas of the injury.
A) granulation cells
B) Langerhans cells
C) blood cells
D) fibroblasts      
E) scab cells
A

D

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9
Q
  1. The effects of aging on the skin include

A) a decline in the activity of sebaceous glands.
B) increased production of vitamin D.
C) thickening of the epidermis.
D) an increased blood supply to the dermis.
E) an increased number of sweat glands.

A

A

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10
Q
  1. An important vitamin that is formed in the skin when it is exposed to sunlight is
A) vitamin A.
B) vitamin B.
C) vitamin C.
D) vitamin D.	 
E) vitamin E.
A

D

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11
Q
  1. An important vitamin that is formed in the skin when it is exposed to sunlight is
A) vitamin A.
B) vitamin B.
C) vitamin C.
D) vitamin D.	 
E) vitamin E.
A

D

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12
Q
  1. When the arrector pili muscles contract,
A) “goose bumps” are formed.	   
B) hairs are shed.
C) sweat is released from sweat glands.
D) shivering occurs.
E) the skin changes color.
A

A

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13
Q
  1. When a fair-skinned person blushes, why does his or her skin turn red?

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.

A

A

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14
Q
  1. Stretch marks occur when

A) the skin is stretched in normal movements.
B) surgical incisions are made perpendicular to the skin’s lines of cleavage.
C) the skin is so extensively stretched that its elastic capabilities are exceeded.
D) athletes overextend a muscle.
E) the hair follicles cease to produce hairs.

A

C

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15
Q
  1. The following are stages in the regeneration of skin following an injury.
  2. Contraction occurs.
  3. Cells of the stratum germinativum divide and migrate.
  4. Granulation tissue is formed.
  5. A scab forms on the surface.

The correct order for these events is

A) 1, 2, 3, 4.
B) 4, 3, 2, 1.
C) 4, 3, 1, 2.      
D) 3, 4, 1, 2.
E) 2, 4, 1, 3.
A

C

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16
Q
  1. Scar tissue is the result of

A) an abnormally large number of collagen fibers and relatively few blood vessels at the repair site.
B) increased numbers of epidermal layers in the area of the injury.
C) a thickened stratum germinativum in the area of the injury.
D) increased numbers of fibroblasts and mast cells in the injured area.
E) a lack of hair follicles and sebaceous glands in the injured area.

A

A

17
Q
  1. Wrinkles and sagging skin in elderly individuals are the result of

A) increased production of epidermis.
B) thinning of the epidermis and decline of the protein elastin.
C) increased keratinization of the epidermis.
D) the loss of glands and hair follicles from the skin.
E) decreased thickness of the dermis.

A

B

18
Q
  1. Which of the following happens if body temperature rises above normal?

A) Circulation in the skin decreases.
B) Sweat gland activity decreases.
C) Evaporative cooling stops.
D) Blood flow to the skin increases.
E) The activity of melanocytes increases.

A

D

19
Q
  1. The protein that permits stretching and recoiling of the skin is
A) collagen.
B) melanin.
C) keratin.
D) elastin.      
E) carotene.
A

D

20
Q
  1. Characteristics of the epidermis include
A) multilayered.
B) flexible.
C) self-repairing.
D) serving as UV radiation protection.
E) all of the above
A

E

21
Q
  1. Cyanosis is indicated by
A) a reddish skin coloration.
B) a yellowish skin coloration.
C) an orange skin coloration.
D) a bluish skin coloration.      
E) a brown skin coloration.
A

D

22
Q
  1. A suntan actually results from
A) increased melanin production.     
B) increased melanocyte production.
C) burned skin.
D) decreased keratin production.
E) increased carotene production.
A

A

23
Q
  1. Skin inflammation is termed
A) cutaneitis.
B) dermatitis.	 
C) epidermatitis.
D) superficialis.
E) melanocytis.
A

B

24
Q
  1. While assessing a patient, you discover that after pinching the skin on the back of the hand, it remains peaked. This is a sign of
A) hydration intoxication.
B) water intoxication.
C) dehydration.	    
D) advanced skin cancer.
E) malfunctioning elastin.
A

C

25
Q
  1. The dermis provides
A) mechanical strength.
B) flexibility.
C) protection for underlying tissues.
D) A and C
E) all of the above
A

E

26
Q
  1. Of the organs listed below, select the largest.
A) liver
B) skin      
C) brain
D) heart
E) stomach
A

B

27
Q
  1. ______________ sweat glands are widely distributed across the body surface, _____ glands are located wherever hair follicles exist, and _____________ sweat glands are found only in a few areas.
A) Sebaceous; merocrine; apocrine
B) Apocrine; merocrine; sebaceous
C) Merocrine; sebaceous; apocrine      
D) Merocrine; apocrine; sebaceous
E) Apocrine; sebaceous; merocrine
A

C

28
Q
  1. The primary purpose of sensible perspiration is
A) to heat internal body organs.
B) to heat the skin.
C) evaporative cooling.	    
D) to get rid of body wastes.
E) to elevate body temperature.
A

C

29
Q
  1. The __________ in keratinocytes protects your epidermis and dermis from the harmful effects of sunlight.
A) oil
B) sweat
C) melanin      
D) carotene
E) keratin
A

C

30
Q
  1. While walking barefoot in the park, Joe stepped on a thorn that penetrated through the sole of his foot to the dermis. How many layers of epidermis did the thorn penetrate?
A) 1
B) 2
C) 3
D) 4
E) 5
A

E

31
Q
  1. The skin is attached to underlying bone and muscle by the _______________.
A

hypodermis

32
Q
  1. Sloughing of the outer layer of skin cells is called ____________________.
A
  1. Sloughing of the outer layer of skin cells is called _______.
    Answer: desquamation
33
Q
  1. The deepest layer or strata of the epidermis is the ________________.
A
  1. The deepest layer or strata of the epidermis is the _______.
    Answer: stratum basale
34
Q
  1. Melanin is produced only by ______________.
A
  1. Melanin is produced only by _______.

Answer: melanocytes

35
Q
  1. Hair is formed by the cells of the ___________________.
A
  1. Hair is formed by the cells of the _______.

Answer: matrix

36
Q
  1. Body odour results from secretions from the ______________ sweat glands.
A
  1. Body odour results from secretions from the _______ sweat glands.
    Answer: apocrine
37
Q
  1. Sweat is involved in the regulation of __________________.
A
  1. Sweat is involved in the regulation of _______.

Answer: body temperature

38
Q

Each of the following is a function of the integumentary system EXCEPT

a) protection of underlying tissue
b) excretion of salts and wastes
c) maintainance of body temp
d) synthesis of vit C
e) storage of nutrients

A

D

NUR 154 Final exam (6 decks)

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