Integumentary Terms

Question 1

How much skin does the average adult have?

Answer 1

2 square yards

Question 2

What are the functions of skin?

Answer 2

prevent fluid loss, block pathogens, sense of touch, manufacture vitamin D

Question 3

glands that secrete sebum that lubricate the skin and discourage bacterial growth

Answer 3

sebaceous gland

Question 4

gland that regulate body temperature and water by secreting sweat

Answer 4

sweat glands

Question 5

What is the function of hair?

Answer 5

help control loss of body heat

Question 6

What is the function of nails?

Answer 6

protect the dorsal surface of the last bone of each toe and finger

Question 7

What are the 3 layers of skin?

Answer 7

epidermis, dermis, subcutaneous layer

Question 8

tissue that forms a protective covering for all of the internal and external surfaces of the body

Answer 8

epithelial tissue

Question 9

tissue that forms the upper layer of the epidermis

Answer 9

squamous epithelial tissue

Question 10

Which layer of skin does not contain any blood vessels, nerves, or connective tissue?

Answer 10

epidermis

Question 11

lowest layer of the epidermis

Answer 11

basal layer

Question 12

fibrous, water-repellant protein

Answer 12

keratin

Question 13

primary component of the epidermis

Answer 13

soft keratin

Question 14

primary component of hair and nails

Answer 14

hard keratin

Question 15

Where are melanocytes located?

Answer 15

basal layer

Question 16

cells that produce a dark brown to black pigment called melanin, which determines skin coloration

Answer 16

melanocytes

Question 17

pigment that determines skin color

Answer 17

melanin

Question 18

What are 2 functions of melanin?

Answer 18

skin coloration, protect the skin from ultraviolet rays

Question 19

thick layer of tissue below the epidermis

Answer 19

dermis

Question 20

another names for the dermis

Answer 20

corium

Question 21

layer of skin which contains that hair follicles, sebaceous glands, and sweat glands

Answer 21

dermis

Question 22

layer of skin which contains sensory nerve endings for touch, temperature, pain, and pressure

Answer 22

dermis

Question 23

tough and flexible fibrous protein found in the skin and bones

Answer 23

collagen

Question 24

cells found in the connective tissue of the dermis that respond to injury, infection, and allergy by releasing substances such as histamine

Answer 24

mast cells

Question 25

anticoagulant relased in response to injury

Answer 25

heparin

Question 26

substance released during an allergic reaction that causes an allergic response

Answer 26

histamine

Question 27

bottom layer of skin which connects the skin to the surface muscles

Answer 27

subcutaneous layer

Question 28

fatty tissue

Answer 28

cellulite or adipose tissue

Question 29

fat cells

Answer 29

lipocytes

Question 30

What do sebaceous glands secrete?

Answer 30

sebum

Question 31

What are 2 function of sebum?

Answer 31

discourage bacterial growth, lubricate skin

Question 32

milk-producing modified sebaceous glands

Answer 32

mammary glands

Question 33

openings on the surface of the skin for sweat gland ducts

Answer 33

pores

Question 34

production and excretion of sweat

Answer 34

hidrosis

Question 35

sacs that hold the root of the hair, determine whether hair is straight or curly

Answer 35

hair follicles

Question 36

tiny muscle fibers attached to hair follicles, cause goosebumps when raised

Answer 36

arrector pili

Question 37

fingernail or toenail

Answer 37

unguis

Question 38

translucent part of the nail, closely molded to the underlying surface

Answer 38

nail body

Question 39

pale half-moon region at every nail root

Answer 39

lunula

Question 40

narrow band of epidermis attached to the surface of the nail just in front of the root

Answer 40

cuticle

Question 41

contained within a limited area

Answer 41

circumscribed