chapter 5- integumentary system

Question 1

layers of skin structure

Answer 1

epidermis, dermis, subcutaneous

Question 2

epidermis

Answer 2

avascularized, keratinized, made of stratified squamous and rests on basement membrane

Question 3

5 layers of epidermis

Answer 3

stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale

Question 4

stratum corneum

Answer 4

outermost of epidermis, prevents dehydration

Question 5

stratum lucidum

Answer 5

layers of dead skin cells ONLY on palms and soles

Question 6

stratum granulosum

Answer 6

alive with granules, where cells die

Question 7

stratum spinosum

Answer 7

thick layer of keratinocytes

Question 8

stratum basale

Answer 8

deepest layer, active mitosis, melanocytes

Question 9

dermis

Answer 9

core, innermost layer of skin 1-2 mm thick, made of irregular dense connective tissue

Question 10

dermis main function

Answer 10

binds epidermis to underlying tissue

Question 11

dermal papillae

Answer 11

make fingerprint

Question 12

hair follicles, blood vessels, nerve and muscle cells, glands found in

Answer 12

dermis

Question 13

subcutaneous

Answer 13

below dermis, loose connective

Question 14

main function of subcutaneous

Answer 14

anchor skin to muscle and bone

Question 15

3 pigments

Answer 15

melanin, carotene, hemoglobin

Question 16

what determines skin color

Answer 16

shape and size of melanosomes

Question 17

function of sebaceous oil glands

Answer 17

prevent dehydration and inhibit growth of certain bacteria

Question 18

suderiferous

Answer 18

sweat

Question 19

mammary glands

Answer 19

modified sweat glands that secrete milk

Question 20

ceruminous glands

Answer 20

secrete earwax

Question 21

6 functions of skin

Answer 21

protection, body temp regulation, sensation, metabolism, blood reservoir, excretion

Question 22

3 barriers of skin protection

Answer 22

physical, biological, chemical

Question 23

touch receptors

Answer 23

meissner’s corpuscles

Question 24

pain receptors

Answer 24

nociceptors

Question 25

pressure receptors

Answer 25

mechanoreceptors