Chapter#5 Integument System Chapter Quiz 201In

Front 1

Each of the following is a function of the integumentary system exceptA.Protection of underlying tissues
B.Excretion of salts and wastes
C. Maintenance of body temperature
D. Synthesis of vitamin C

Back 1

D. Synthesis of Vitamin C

Front 2

The two components of the cutaneous membrane are the

Back 2

epidermis and dermis

Front 3

Accessory structures of the skin include all of the following except
A. Hair Follicles
B.Sebaceous glands
C.Nails
D.Epidermis

Back 3

Epidermis

Front 4

The most abundant cells in the epidermis are

Back 4

Keratinocytes

Front 5

The lyer of the epidermis that contains cells undergoing division is the

Back 5

Stratum Germinativum

Front 6

An epidermal layer found only in the skin of the palms of the hands and the soles of the feet is:

Back 6

Stratum lucidum

Front 7

The layer of the epidermis that contains melanocytes is the

Back 7

Stratum Germinativum

Front 8

An albino individual lacks the ability to produce

Back 8

Melanin

Front 9

Which of the following is not an effect of ultraviolet radiation?
A. Increased activity by melanocytes
B. Production of cholecalciferol by epidermal cells
C. Chromosomal damage in germinative cells or melanocytes
D. Vitiligo

Back 9

Vitiligo

Front 10

The layer of the skin that contains the blood vessels and verves closest to the surface of the skin is the

Back 10

Papillary layer

Front 11

The layer of the skin that contains bundles of collagen fibers and the protein elastin and which is responsible for the structural strength of the skin is the

Back 11

Reticular layer

Front 12

The cells in a hair follicle that are responsible for forming hair are called

Back 12

Matrix cells

Front 13

Variations in hair color reflect differences in the pigment produced by

Back 13

Melanocytes

Front 14

Glands that discharge an oily secretion into hair follicles are ________ glands

Back 14

Sebaceous

Front 15

Most body order is the result of bacterial metabolism of the secretion produced by ______ glands.

Back 15

Apocrine sweat

Front 16

Sensible perspiration is produced by _____ glands

Back 16

Merocrine glands

Front 17

The highest concentration of merocrine sweat glands would be found

Back 17

on the palms of the hands

Front 18

The primary purpose of sensible perspiration is to

Back 18

Cool the surface of the skin

Front 19

Sweat tastes salty because of its

Back 19

Electrolytes

Front 20

The nail body covers the

Back 20

Nail Bed

Front 21

Nail production occurs at the nail

Back 21

Root

Front 22

The repair of the dermis begins as fibroblasts produce

Back 22

Collagen Fibers

Front 23

The effects of aging on the skin include:
A. A decline in the activity of sebaceous glands
B. Increased production o f vitamin D
C. An increased blood supply to the dermis
D. An increased number of sweat glands

Back 23

A decline in the activity of sebaceous glands

Front 24

An important vitamin that is formed in the skin when it is exposed to sunlight is:

Back 24

Vitamin D

Front 25

A fibrous protein that is responsible for the strength of water resistance of the skin surface is

Back 25

Keratin

Front 26

All of the following are true of epidermal ridges except:
A. Extend into the dermis
B. Contain increased numbers of free nerve endings
C. Cause ridge patterns on the surface of the skin
D. Produce patterns that are determined genetically

Back 26

B. Contain increased numbers of free nerve endings

Front 27

When the arrector pili muscles contract

Back 27

Goose bumps are formed

Front 28

Furnuncles or boils are abcesses of _____ glands

Back 28

Sebaceous

Front 29

Deodorants are used to mask the odor of ________ secretions

Back 29

Apocrine Sweat

Front 30

The type of burn that may require a skin graft is a:

Back 30

Third Degree Burn

Front 31

The darker an individual's skin color,

Back 31

The more melanin their melanocytes produce

Front 32

Stretch marks occur when

Back 32

The skin is so extensively stretched that its elastic capabilities are exceded

Front 33

If the papilla of a hair follicle is destroyed

Back 33

The follicle will not produce a hair

Front 34

When hair follicles of the scalp shift from producing terminal hairs to producing vellus hairs, ______ occurs

Back 34

Baldness

Front 35

Scar tissue is the result of
A. An abnormally large number of collagen fibers and relatively few blood vessels at the repair sit
B. Increased numbers of epidermal layers in the area of the injury
C. Increased numbers of fibroblasts and mast cells in the injured area
A. A thickened germinativum in the area of the injury

Back 35

A. An abnormally large number of collagen fibers and relatively few blood vessels at the repair site

Front 36

Why would an elderly person be more prone to skin infections than a younger person?
A. Skin repair takes longer in the elderly
B. The epidermis is thinnner in the elderly
C. There are fewer Langerhans cells in the skin of the elderly
D. All of the above

Back 36

D. All of the above

Front 37

Which of the following happens if body temperature rises above normal?

Back 37

Blood flow to the skin increases

Front 38

In the elderly, blood supply to the dermis is reduced and sweat glands are less active. Tis combination of factors would most affect

Back 38

The ability to thermoregulate

Front 39

Charlie is badly burned in an accident. When he reaches the emergency room, the examining physician finds that he can remove entire hair follicles from Charlie's arm when he gently pulls on a hair with his forceps. Charlie is suffering from a

Back 39

Third degree burn

Front 40

Exposure of the skin to ultraviolet light:

Back 40

Can reslut in damage to the DNA of cells in the stratum germinativum

Front 41

Beginning at the lamina and traveling toward the free suface, the peidermis includes the following layers:

Back 41

germinativum,spinosum,granulosum,lucidum,corneum

Front 42

The two major components of the dermis are the

Back 42

papillary layer and reticular layer

Front 43

The cutaneous plexus and papillary plexus consist of

Back 43

A network of arteries providing the dermal blood supply

Front 44

The two types of exocrine glands in the skin are

Back 44

sebaceous and sweat glands

Front 45

Apocrine sweat glands are controlled by the

Back 45

ANS and endocrine system

Front 46

The stratum corneum of the nail root, which extends over the exposed nail, is called the

Back 46

Eponychium