integumentary system Flashcards
(23 cards)
main functions of integumentary system
protection
temp regulation
sensory info
what are the 2 official layers of the skin
(superficial to deep)
epidermis
dermis
what is the 1 unofficial layer of the skin
hypodermis
the epidermis is (vascular/avascular)
avascular
what are the 5 layers of the epidermis
(deep to superficial)
stratum basale
stratum spinosum
stratum granulosum
stratum lucidum (thick skin only)
stratun corneum
the dermis is (vascular/avascular)
vascular
what are the two layers of the dermis
papillary region
reticular region
what are the accessory structures of the skin
hair
nails
glands
what is hair enclosed by
hair follicle
what are the 3 regions of the hair
(deep to superficial)
hair bulb
hair root
hair shaft
what does the arrector pili muscle do
connect hair follicle to dermis
what is the nail plate (body)
visible attached portion
what are the 2 parts of the nail body
free edge
lanula
what is the nail folds
part on the side of the nail
what is the nail bed
covered by nail body
what is the nail root
part of nail embedded in skin
what is the hyponychium
skin beneath free edge
what are the 2 types of glands
sebaceous glands
sudiferous glands
what do sebaceous glands secrete
sebum
what do sudiferous glands secrete
sweat
what are the 2 kinds of sudiferous glands
eccrine sweat glands
apocrine sweat glands
what kind of sweat does eccrine glands secrete
mostly water
what kind of sweat does apocrine glands secrete
smelly b/c proteins/lipids
