Chapter 6

Question 1

a. outer layer of skin
b. stratified squamous epithelium
c. lacks blood vessels; obtains nutrients through diffusion
d. in 4-5 layers

Answer 1

epidermis

Question 2

a. masses of loose connective and adipose tissues that bind skin to underlying organs

Answer 2

subcutaneous layer (hypodermis)

Question 3

a. inner layer
b. thicker than epidermis
c. contains connective tissue of collagenous and elastic fibers, epithelial tissue, smooth muscle tissue, nervous tissue, and blood

Answer 3

dermis

Question 4

a. outer layer
b. composed of stratified squamous epithelium

Answer 4

epidermis

Question 5

what
-regulates temperature
-protects underlying tissues
-prevents water loss
- senses environmental change
-houses cells of the immune system

Answer 5

homeostasis - skin is responsible

Question 6

more commonly called the skin

Answer 6

cutaneous membrane

Question 7

a. forms inner linings of joint cavities between ends of freely movable joints
b. cells w/in membranes secrete thick colorless synovial fluid into the joint cavity to lubricate ends of bones within joints

Answer 7

synovial membranes

Question 8

a. lines cavities and tubes that open to the outside body
b. contains specialized cells within the membrane that secretes mucous
c. found in the oral and nasal cavities, tubes of digestive, respiratory, urinary, and reproductive systems

Answer 8

mucous membranes

Question 9

a. lines body cavities that lack openings to the outside
b. forms the inner linings of the thorax (parietal pleura) and the abdomen (parietal peritoneum)
c. cells secrete watery serous fluid to lubricate linings.

Answer 9

serous membranes

Question 10

basement membrane anchors…

Answer 10

the epidermis and dermis

Question 11

serous, mucous, synovial, cutaneous are all what?

Answer 11

4 main types of membranes

Question 12

what makes up the integumentary organ system?

Answer 12

the skin and its accessory organs

Question 13

body structures composed of two or more different tissues is called what?

Answer 13

organs

Question 14

what is only found in the thickest skin and is the 2nd layer of epidermis?

Answer 14

stratum lucidum

Question 15

what is the keratinized layer (dead cells); oldest layer of cells, and the 1st layer of epidermis?

Answer 15

Stratum corneum

Question 16

what is the granular layer, and the 3rd layer of the epidermis?

Answer 16

stratum granulosum

Question 17

what is the thickest layer, and the 4th layer of the epidermis?

Answer 17

stratum spinosum

Question 18

what is the deepest layer that touches the dermis and is the only layer that obtains nourishment from dermal blood vessels, and is the 5th layer of the epidermis

Answer 18

stratum basale (germinativum)

Question 19

the cells in what layer change shape as they are pushed towards the surface?

Answer 19

stratum basale (germinativum)

Question 20

the farther the cells move towards the surface…

Answer 20

Stratum Basale
poorer the nutrient supply

Question 21

older cells pushed away from dermis toward skin surface undergo…

Answer 21

Stratum Basale
kertanization

Question 22

____ and ____ form on areas where skin is rubbed over and over

Answer 22

Stratum Basale
calluses and corns

Question 23

______ are in stratum basale and dermis; they produce ________ for skin color

Answer 23

Stratum Basale
melanocytes; dark pigments (melanin)

Question 24

absorbs ______ and protects deeper cells from ________

Answer 24

Stratum Basale (germinativum)
light energy ; UV radiation