Chapter 4 A (The Integumentary System)

Question 1

apocrine glands

Answer 1

glands that appear during and after puberty and secrete sweat, as from the armpits

Question 2

ceruminous glands

Answer 2

glands that secrete a waxy substance on the surface of the ear

Question 3

collagen

Answer 3

major protein substance that is tough and flexible and that forms connective tissue in the body

Question 4

corium/ dermis

Answer 4

layer of skin beneath the epidermis containing blood vessels, nerves and some glands

Question 5

eccrine glands

Answer 5

sweat glands that occur all over the body, except where the apocrine glands occur

Question 6

epidermis

Answer 6

outer portion of the skin containing several strata

Question 7

exocrine glands

Answer 7

glands that secrete through ducts towards the outside of the body

Question 8

hair follicle

Answer 8

tubelike sac in the dermis out of which the hair shaft develops

Question 9

hypodermis

Answer 9

subcutaneous skin layer, below the dermis

Question 10

integument

Answer 10

skin and all the elements that are contained within and arise from it

Question 11

keratin

Answer 11

hard, horny protein that forms nails and hair

Question 12

lunula

Answer 12

half-moon shaped area at the base of the nail-plate

Question 13

melanin

Answer 13

pigment produced by melanocyte that determines skin, hair, and eye color

Question 14

melanocyte

Answer 14

cell in the epidermis that produces melanin

Question 15

nail

Answer 15

thin layer of keratin that covers the distal portion of fingers and toes

Question 16

papillary layer

Answer 16

thin sublayer of the dermis containing small papillae (nipple like masses)

Question 17

reticular layer

Answer 17

bottom sublayer of the dermis containing reticula (network of structures with connective tissue between)

Question 18

sebaceous glands

Answer 18

glands in the dermis that ope to hair follicles and secrete sebum

Question 19

sebum

Answer 19

oily substance, usually secreted into the hair follicle

Question 20

squamous epithelium

Answer 20

flat, scaly layer of cells that makes up the epidermis

Question 21

stratified squamous epithelium

Answer 21

layers of epithelial cells that make up the strata of epithelium of the epidermis

Question 22

stratum

Answer 22

layer of tissue, especially layer of skin

Question 23

stratum corneum

Answer 23

top sublayer of the epidermis

Question 24

stratum germinativum

Answer 24

bottom sublayer of the epidermis

Question 25

striae

Answer 25

stretch marks in the collagen fibers of the dermis layer

Question 26

subcutaneous layer

Answer 26

bottom layer of the skin containing fatty tissue

Question 27

sweat glands

Answer 27

coiled glands of the skin that secrete perspiration to regulate body temperature and excrete waste products