Chapter 5- Integumentary System Flashcards Preview

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Flashcards in Chapter 5- Integumentary System Deck (37)
0

The layers of the epidermis, beginning with the deepest layer and proceeding outwardly, include the stratum...

Basale, spinosum, granulosum, and corneum

1

The layers of the epidermis where mitotic divisions are the...

Basale and spinosum

2

The epidermis consist of a...

Simple squamous epithelium

3

Differences in skin color between individuals reflect distinct...

Levels of melanin synthesis

4

The basic factors interacting to produce skin color are...

Circulatory supply and pigment concentration and composition

5

Excessive exposure of the skin to UV radiation may cause redness, edema, blisters, and pain. The presence of blisters classifies the burn as...

Second degree

6

When exposed to ultraviolet radiation, epidermal cells in the stratum basale and stratum spinosum convert a cholesterol-related steroid into...

Vitamin D3

7

The hormone essential for the normal absorption of calcium and phosphorus by the small intestine is...

Calcitriol

8

Epidermal growth factor EF has widespread effects on epithelia tissue in that it...

1. Promotes the divisions of germinative cells
2. Accelerate the production of keratin
3. Stimulates epidermal development and repair

9

The two major components of the dermis are...

A papillary layer and a reticular layer

10

What identifies what the dermis contains to communicate with other organ systems?

Nerve fibers

11

The primary tissues comprising the hypodermis are...

Areolar and adipose

12

The reason the hypodermis is a good location for subcutaneous injection by hypodermic needle is that it has a...

Limited number of capillaries and no vital organs

13

An important function of the subcutaneous layer is to...

Stabilize the position of the skin in relation to underlying tissues

14

Special smooth muscles in the dermis that, when contracted, produce "goose bumps" are called...

Arrector pili

15

Hair production occurs in the...

Hair follicle, in the hair matrix

16

The natural factor responsible for varying shades of hair color is...

Type of pigment present

17

Accessory structures of the skin include the...

Hair follicles, sebaceous gland, and sweat gland

18

Sensible perspiration released by the eccrine sweat glands serves to...

1. Cool the surface do the skin
2. Reduce body temperature
3. Dilute harmful chemicals

19

When the body temperature becomes abnormally high, thermoregulatory homeostasis is maintained by a(n)...

Increase in sweat gland activity and blood flow to the skin

20

Not visible from the surface, nail production occurs at an epithelial fold called the...

Nail root

21

The immediate response by the skin to an injury is...

Bleeding and an inflammatory response triggered by damaged mast cells

22

The practical limit to the healing process of the skin is the formation of inflexible, fibrous, noncellular...

Scar tissue

23

Hair turns gray or white due to...

Decreased melanocyte activity

24

Sagging and wrinkling of the integument occurs from...

A decrease in the elastic fiber network of the dermis

25

The two major components of the integument are the...

Cutaneous membrane and accessory structures

26

Psoriasis is a skin disorder in which there is abnormal increased mitotic activity in the...

Stratum basale

27

Third degree burns differ from the first and second degree burns in that...

The epidermis, dermis, and hypodermis are destroyed

28

The two components of the cutaneous membrane are the...

Epidermis and dermis

29

Because freshwater is hypotonic to body fluids, sitting in a freshwater bath causes...

Water to enter the epidermis and cause the epithelial cells to swell

30

Malignant melanomas are extremely dangerous and life threatening because...

The melanocytes grow rapidly and metastasize through the lymphatic system

31

The subcutaneous layer that separates the integument from the deep fascia around other organs...

Hypodermis

32

Ceruminous glands are modified sweat glands located in the

External auditory gland

33

The regulation of salts, water, and organic wastes by the integumentary glands is accomplished by...

Excretion

34

Scar tissue is best described as...

Fibrous, noncellular accumulation of tissue at the site of injury repair

35

The protein that permits stretch and recoil of the skin is...

Elastin

36

The primary pigments contained in the spider is are...

Carotene and melanin