Chapter 7 Test

Question 1

Which of the following functions is associated with the skin?

Answer 1

protection against ultraviolet radiation of the sun

Question 2

The integumentary system has many functions, one of which is

Answer 2

Detection of painful stimuli

Question 3

The layer of fat below the skin is called the

Answer 3

Hypodermis

Question 4

Which of the following statements concerning the hypodermis is false?

Answer 4

Hypodermis is composed of dense connective tissue with collagen and elastin fibers.

Question 5

Body fat in the hypodermis

Answer 5

Varies with age and sex

Question 6

The dermis

Answer 6

Is responsible for most of the skin’s structural strength

Question 7

Which of the following statements concerning the epidermis is true

Answer 7

The epidermis is nourished by blood vessels located in the dermis

Question 8

Keratinization

Answer 8

Produces a layer of cells that resist abrasion

Question 9

Skin color is the result of

Answer 9

The quantity of melanin in the skin

Question 10

Melanin production can be influenced by

Answer 10

Genetics, hormones, exposure to sunlight, pregnancy

Question 11

Melanin

Answer 11

Is absent in individuals known as albinos

Question 12

A victim of an automobile accident goes into shock, which results in decreased blood flow. The victim’s skin will

Answer 12

Become pale

Question 13

The portion of a hair that protrudes above the surface of the skin is the

Answer 13

Hair shaft

Question 14

Which of the following hair colors is the result of a decrease in melanin

Answer 14

White

Question 15

When the arrestor pili muscles contract

Answer 15

“goose bumps” form on the skin

Question 16

Which of the following statements is false about sebaceous glands?

Answer 16

Sebaceous glands are an example of apocrine glands

Question 17

The activity of apocrine sweat glands

Answer 17

leads to body odor

Question 18

Sweat glands

Answer 18

aid in cooling the body

Question 19

Sweat

Answer 19

is produced by an apocrine gland

Question 20

Skin glands do not include

Answer 20

Salivary glands

Question 21

Nails

Answer 21

protect the ends of digits

Question 22

An increase in body temperature causes

Answer 22

Sweating

Question 23

Which of the following will help cool the body?

Answer 23

Evaporation of sweat from the skin’s surface

Question 24

Which vitamin begins its synthesis in the skin’s exposure to ultraviolet light?

Answer 24

Vitamin D

Question 25

Barney sat on a hot camp stove while on a camping trip. the burn was painful and blistered. His was what type of burn?

Answer 25

Second degree

Question 26

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

Answer 26

Loss of subcutaneous tissue contributes to sagging of the skin

Question 27

With aging, individuals tent to feel colder and usually need the thermostat in their home set higher in the winter to feel warm enough. This is probably because the elderly

Answer 27

Experience a decrease in the thickness of their subcutaneous fat layer

Question 28

Thin outer layer of the skin

Answer 28

Epidermis

Question 29

Responsible for most of the skin's structural strength

Answer 29

Dermis

Question 30

Site of fat storage

Answer 30

Hypodermis

Question 31

A protein that flattens, hardens and makes the skin water resistant

Answer 31

Keratin

Question 32

Responsible for melanin production

Answer 32

Melanocyte

Question 33

The portion of the hair that extends above the surface of the skin

Answer 33

Shaft

Question 34

The epidermal cells from which the hair grows from

Answer 34

Follicle

Question 35

The portion of the hair below the surface of the skin

Answer 35

Root

Question 36

Vesicles that contain melanin

Answer 36

Melanocyte

Question 37

A genetic disease characterized by the inability to produce melanin

Answer 37

Albinism

Question 38

Loss of pigment in certain areas of skin

Answer 38

Vitiligo

Question 39

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

Answer 39

Carotene

Question 40

Bluish skin color caused by decrease in blood oxygen

Answer 40

Cyanosis

Question 41

Outermost layer of skin

Answer 41

Epidermis

Question 42

Oil glands of the skin

Answer 42

Sebaceous

Question 43

Bluish discoloration of the skin

Answer 43

Cyanosis

Question 44

Skin color caused by liver or gallbladder disease

Answer 44

Jaundice

Question 45

Increased blood flow to the skin

Answer 45

Flushing

Question 46

The skin is attached to underlying bone and muscle by the _____

Answer 46

Hypodermis

Question 47

Melanin is produced only by _____

Answer 47

melanocytes

Question 48

Body odor results from secretions from the

Answer 48

apocrine sweat glands

Question 49

Sweat is involved in the regulation of _____

Answer 49

thermoregulation

Question 50

What is the functional relationship between melanin, melanocytes, and tanning of the skin?

Answer 50

When someone tans, melanocytes are activated, causing melanin to be released resulting in a bronze tint to the skin

Question 51

What might happen to the skin color of an individual whose diet was mainly carrots, tomatoes, and other yellow vegetables?

Answer 51

When someone eats carrots and other yellow vegetables, there is carotene released which can cause yellowing to the skin

Question 52

Dry skin

Answer 52

Moisture is lost easier because the skin is looser

Question 53

Wrinkles

Answer 53

The skin does not have as much fat and collagen is broken down

Question 54

Age spots

Answer 54

Can develop from the sun or from the skin being thin

Question 55

Gray hairs

Answer 55

The body loses its ability to produce melanin

Question 56

Both patient A and patient B suffered burns to their legs when their space heater exploded. Patient A suffered a partial thickness burn while patient B suffered a full thickness burn. Predict the effect their burns will have on skin regeneration and hair growth.

Answer 56

Patient A will recover in a couple weeks because the skin was damaged, there will also be scarring, some hair growth. Patient B will need a skin graft because his skin was destroyed and will most likely not have hair growth.

Question 57

Why are older individuals more prone to heat exhaustion?

Answer 57

Since their fat breaks down, there is less insulation in the body for them to stay cool/warm

Question 58

Explain how the integumentary system is used to diagnose cyanosis

Answer 58

The skin can show cyanosis because the skin turns blue from lack of oxygen.

Question 59

Explain how the integumentary system is used to diagnose jaundice

Answer 59

The skin can show jaundice because it turns yellow which shows signs of jaundice which is caused by the liver.

Question 60

Challenge: Rebecca noticed a change in the mole on the back of her arm. It appeared to be larger than she remembered, and the border was lopsided and irregular. She made an appointment with her dermatologist because these warning signs could indicate what condition?

Answer 60

It could indicate melanoma-a deadly skin cancer. The dermatologist would perform a biopsy to find out.