Chapter 5: Integumentary System

Question 1

functions of the skin (6)

Answer 1

protects, excretes, maintains, synthesizes, stores, detects

Question 2

outermost part of the skin, stratified squamous epithelial tissue

Answer 2

epidermis

Question 3

just underneath the epidermis, areolar & dense, irregular connective tissue

Answer 3

dermis

Question 4

loose connective tissues (adipose & areolar)

Answer 4

hypodermis

Question 5

first strata

Answer 5

stratum corneum

Question 6

second strata

Answer 6

stratum lucidum

Question 7

third strata

Answer 7

stratum granuolosum

Question 8

fourth strata

Answer 8

stratum spinosum

Question 9

fifth strata

Answer 9

stratum basale

Question 10

protects nuclei of keratinocytes from UV radiation

Answer 10

melanin

Question 11

main cell type of the epidermis

Answer 11

keratinocyte (makes protein keratin)

Question 12

black/brown melanin

Answer 12

eumelanin

Question 13

reddish melanin

Answer 13

pheomelanin

Question 14

yellow/orange pigment found in some red, yellow, and orange veggies

Answer 14

carotene

Question 15

abnormally red skin, secondary to increased blood flow to an area of skin

Answer 15

erythema

Question 16

the 2 layers of connective tissue in the dermis

Answer 16

papillary layer (areolar tissue) & reticular layer (dense irregular)

Question 17

oil producing gland

Answer 17

sebaceous

Question 18

sweat producing gland

Answer 18

sudoriferous

Question 19

ear wax glands

Answer 19

ceruminous

Question 20

milk producing glands (modified apocrine sweat gland)

Answer 20

mammary

Question 21

waxy, oily secretion that inhibits bacterial growth; lubricates & conditions epidermis and hair

Answer 21

sebum

Question 22

2 types of sudoriferous gland

Answer 22

merocrine (eccrine) and apocrine

Question 23

not associated with hair follicle, widely distributed across body, abundant on palms, soles and forehead

Answer 23

merocrine/eccrine

Question 24

enlarged bottom end of hair follicle

Answer 24

bulb

Question 25

from bulb to skin surface

Answer 25

root

Question 26

exposed part beyond skin surface

Answer 26

shaft

Question 27

fine hair type, located over much of the body

Answer 27

vellus

Question 28

coarse hair, located on scalp, eyebrows, eyelashes, in nose, armpits, groin

Answer 28

terminal

Question 29

imbedded in the skin, growing part of the nail in this area=matrix

Answer 29

nail root

Question 30

pale crescent at base of nail

Answer 30

lunula

Question 31

whitest part on nail that appears to grow

Answer 31

free edge

Question 32

sense of pain and temperature

Answer 32

free nerve endings

Question 33

interacts with tactile cells to provide a sense of touch & pressure

Answer 33

tactile disc

Question 34

sense of vibration

Answer 34

lamellated corpuscle