Deck 6: Integumentary System

Question 1

Epidermal cells are supplied with nutrients from blood vessels located in the

A) epidermis.
B) dermis.
C) subcutaneous layer.
D) stratum corneum.
E) stratum basale.

Answer 1

B

Question 2

A burn that involves the epidermis only is called a deep partial-thickness burn.

Answer 2

False

Question 3

Carcinomas appear most often in the skin of the neck,face and scalp.

Answer 3

True

Question 4

Hair color is determined by the amount of keratin protein produced during keratinization.

Question 5

Which of the following is NOT a method for helping prevent pressure ulcer formation?

A) massaging the skin
B) eating foods rich in proteins
C) providing adequate fluid intake
D) maintaining one body position
E) stimulating blood flow

Question 6

Skin cancer cells are most likely to develop from

A) pigmented epithelial cells.
B) pigmented melanocytes.
C) nonpigmented epithelial cells.
D) nonpigmented melanocytes.
E) nonpigmented dermal cells.

Question 7

Pressure ulcers are usually associated with skin overlying

A) bony projections.
B) skeletal muscles.
C) a thick layer of fat.
D) nerve fibers.
E) the hands.

Question 8

As cells are pushed from the deeper part of the epidermis toward the surface

A) they divide continually.
B) their supply of nutrients improves.
C) they die.
D) they become dermal cells.
E) they become cancerous.

Question 9

The major blood vessels that supply skin cells are found in the

A) epidermis.
B) epidermis and dermis.
C) dermis.
D) subcutaneous layer.
E) bone.

Question 10

The human integumentary system includes

A) skin,nails,hair follicles,and glands.
B) just the skin.
C) the epidermis,dermis,and subcutaneous layer.
D) muscles and bones.
E) skin,hooves,and horns.

Question 11

Blood with excess oxygen causes cyanosis.

Question 12

An organ contains

A) skin and bones.
B) two or more tissues grouped together that function together.
C) at least four tissues grouped together that function together.
D) one variety of each of the four tissue types.
E) all one type of tissue.

Question 13

The dermis is very flat compared to the epidermis,which has ridges projecting inward and elevations called papillae.

Question 14

Three physiological factors that affect the color of skin are: volume of blood in dermal vessels,carotene in the subcutaneous layer and various diseases.

Question 15

Nerve fibers scattered throughout the dermis are associated with

A) hair,oil glands,and sweat glands.
B) bone,tendons,and muscles.
C) the subcutaneous layer.
D) muscles,glands,and sensory receptors.
E) fingernails and toenails.

Question 16

When the body temperature rises above normal,dermal blood vessels are likely to constrict.

Question 17

The secretion of the sebaceous glands is called sebum.

Question 18

Which of the following is NOT correct concerning the skin?

A) The dermis is usually thicker than the epidermis.
B) The epidermis is composed of stratified squamous epithelium.
C) The subcutaneous layer is between the dermis and the epidermis.
D) The dermis contains smooth muscle and nerve tissue.
E) The skin contains some immune cells.

Question 19

The outermost layer of the epidermis is stratum basale and the innermost layer is stratum corneum.

Question 20

In healthy skin,the production of epidermal cells is closely balanced with the loss of skin cells.

Question 21

Cutaneous carcinomas are most commonly caused by exposure to

A) X-rays.
B) gamma radiation.
C) ultraviolet light.
D) mutagenic chemicals.
E) carcinogenic chemicals.

Question 22

__________ is the pigment produced by melanocytes.

Question 23

Injections that are administered into the tissues of the skin are called

A) subcutaneous.
B) intradermal.
C) intramuscular.
D) hypodermic.
E) intravenous.

Question 24

The __________ of the subcutaneous layer acts as a heat insulator.

Question 25

The most common cause of cutaneous melanoma is

A) relatively short exposure to high intensity sunlight.
B) prolonged exposure to low intensity sunlight.
C) occasional exposure to X-rays.
D) exposure to background radiation.
E) exposure to mutagenic chemicals.

Question 26

A nail consists of a

A) nail fork and nail spoon.
B) nail bed and nail plate.
C) nail rail and nail groove.
D) nail follicle and nail papilla.
E) none of the above.

Question 27

Which of the following is a characteristic of the person most likely to develop a cutaneous carcinoma?

A) over forty years of age
B) often works outdoors
C) light-complexioned skin
D) often plays outdoors
E) all of these

Question 28

Which of the following is a normal response to excess loss of body heat in a cold environment?

A) Dermal blood vessels constrict.
B) Sweat glands become inactive.
C) Skeletal muscles contract involuntarily.
D) Less blood flows to dermal vessels.
E) All of these

Question 29

The granulations that appear during the healing of a large,open wound are composed mainly of

A) blood clots.
B) phagocytic cells.
C) fibroblasts surrounding blood vessels.
D) scar tissue.
E) dead keratinocytes.

Question 30

The shaft of a hair is composed of

A) dead epidermal cells.
B) living epidermal cells.
C) dead dermal cells.
D) living dermal cells.
E) living fibroblasts.

Question 31

Dark hair contains an abundance of __________.

Question 32

Acne is a disorder involving the

A) sweat glands.
B) hair follicles.
C) sebaceous glands.
D) apocrine glands.
E) eccrine glands.

Question 33

Eccrine sweat glands

A) are most common in the armpits and groin.
B) respond primarily to elevated body temperature.
C) respond primarily to emotional stress.
D) usually are associated with hair follicles.
E) are examples of holocrine glands.

Question 34

The arrector pili muscle is composed of __________ muscle tissue.

Question 35

The __________ glands of the skin respond to emotional stress and begin to function at puberty.

Question 36

The deepest cells of the epidermis make up the stratum ____________.

Question 37

Exposure to ultraviolet light darkens the skin by stimulating production of

A) melatonin.
B) carotene.
C) hemoglobin.
D) cyanin.
E) melanin.