Chapter 7:3 Integumentary System

Question 1

Integumentary System

Answer 1

Both a membrane (covers body) and an organ (contains several kinds of tissues)

Covers more than 3,000 sq. in. of surface area; 15% of total body weight.

Question 2

Epidermis

Answer 2

Outermost layer of skin; made of 5 smaller layers but contains no blood vessels or nerve cells

Question 3

Dermis

Answer 3

AKA Corium or true skin

Question 4

Sudoriferous glands

Answer 4

sweat glands

Question 5

sebaceous glands

Answer 5

Oil glands that open into hair follicles

Produce sebum, an oil that keeps skin and hair from becoming dry and brittle

Question 6

Subcutaneous fascia or hypodermis

Answer 6

Innermost layer

Question 7

7 Functions of the integumentary system

Answer 7

Protection
Sensory perception
Body temperature regulation
Storage
Absorption
Excretion
Production

Question 8

Melanin

Answer 8

Brownish black pigment produced in the epidermis

Question 9

Carotene

Answer 9

Yellowish red pigment

Question 10

Albino

Answer 10

Absence of color pigments

Question 11

Jaundice

Answer 11

Yellow discoloration of the skin; can indicate bile in the blood

Question 12

Erythema

Answer 12

Reddish color of the skin that can be caused by burns or congestion of blood vessels.

Question 13

Cyanosis

Answer 13

Bluish discoloration of the skin caused by insufficient oxygen

Question 14

Macules

Answer 14

flat spots on the skin, e.g. freckles

Question 15

papules

Answer 15

firm, raised areas. e.g. pimples

Question 16

Vesicles

Answer 16

Blisters, or fluid- filled sacs, e.g. chickenpox

Question 17

Pustules

Answer 17

Pus filled sacs, e.g. acne or pimples

Question 18

Crusts

Answer 18

Area of dried pus and blood, e.g. scabs

Question 19

Wheals

Answer 19

itchy, elevated areas with an irregular shape, e.g. hives and insect bites

Question 20

Ulcer

Answer 20

deep loss of skin surface; may cause periodic bleeding and scar formation

Question 21

3 main types of skin cancer

Answer 21

Basal cell carcinoma
Squamous cell carcinoma
Melanoma- most dangerous type

Question 22

Eczema

Answer 22

Inflammatory skin disorder caused by allergen or irritant.

Question 23

Impetigo

Answer 23

Highly contagious skin infection caused by strep organisms

Question 24

Verrucae

Answer 24

AKA warts, caused by a viral infection of the skin.

Question 25

Lordosis

Answer 25

AKA swayback, inward curvature of the lumbar region