Accessory Skin Structures Flashcards
all over body, consists of water, salt, and urea → Widely distributed, outlet through pores → cool off body
Eecrine/merocrine glands
in axillary (armpit) and genital areas, “sex and sweat”, milky substance rich in protein and fat), has an odor
Apocrine glands
produce cerumen (ear wax)
specialized/modified apocrine gland
Ceruminous glands
produce milk
specialized/modified apocrine gland
Mammary glands
Sebaceous glands
Ducts empty into hair follicle
Become more active during puberty
Produce sebum – a mix of oil and fragmented cells to keep skin soft and moist
Found all over the body, except for the palms of hands and soles of feet
hair not found at
palms of the hand, soles of the feet, part of external genitalia, nipples, and lips
hair layers
Three layers of keratinized cells: medulla, cortex, and cuticle
hair is made of
mostly non-living materials
region projecting from the skin in hair
hair shaft
enclosed within the hair follicle
hair root
outer layer of hair
cuticle
middle layer of hair
cortex
inner layer of hair
medulla
melanocytes are in
hair matrix
epithelial cells at the base of the follicle
hair bulb
nails are
horn-like derivatives of the epidermis
nail bed is
extension of stratum basale
nail matrix contains
germinal cells responsible for nail growth
