integumentary system

Question 1

2 parts of skin

Answer 1

epidermis: superficial, made of epithelial cells, avascular
dermis: deep, makes up most of skin, made of connective tissue, vascular
subcutaneous tissue, hypodermis: (not a part of skin), made of adipose tissue

Question 2

2 parts of dermis

Answer 2

papillary layer and reticular layer

Question 3

structures in papillary layer

Answer 3

(superfical) dermal papillae, meissner’s corpuscle, capillary loops, and free nerve endings

Question 4

structures of reticular layer

Answer 4

(deep) hair follicle, arrector pill muscle, sebaceous gland, sudoriferous gland, pacinian corpuscle

Question 5

dermal papillae

Answer 5

bumps that bind the epidermis and dermis and create fingerprints

Question 6

meissner’s corpuscle

Answer 6

sense light touch

Question 7

capillary loops

Answer 7

drops o2 off to epidermis and co2 is removed from dermis

Question 8

free nerve endings

Answer 8

sense pain, temp., and itching

Question 9

arrector pill muscle

Answer 9

contracts to raise hair on end

Question 10

hair follicle

Answer 10

tunnel where hair grows from

Question 11

sebaceous gland

Answer 11

oil glands

Question 12

sudoriderous gland

Answer 12

sweat glands

Question 13

pacinian glands

Answer 13

sense heavy touch

Question 14

structures in hypodermis

Answer 14

adipose tissue, sensory nerves, motor nerves, and blood vessels

Question 15

sensory nerve

Answer 15

sends messages from free nerve endings

Question 16

motor nerve

Answer 16

sends messages from brain

Question 17

functions of skin

Answer 17

protection, body temp regulation, sensing, vit. D synthesis, excretion