Chapter 16 Flashcards
skin (60 cards)
adipocyte
fat cell
albinism
condition of skin deficient in pigment (melanin)
apocrine sweat gland
one of the large exocrine glands located in the axilla and genital areas. it opens into the hair follicle and secretes sweat that, with bacteria, is responsible for human body odor
basal layer
deepest region of the epidermis; it gives rise to all the epidermal cells
collagen
structural protein found in the skin and connective tissue
cuticle
band of epidermis at the base and sides of the nail plate
dermis
middle layer of the skin
eccrine sweat gland
most numerous sweat-producing exocrine gland in the skin
epidermis
outermost layer of the skin
epithelium
layer of skin cells forming the outer and inner surfaces of the body
hair follicle
sac within which each hair grows
integumentary system
the skin and its accessory structures, such as hair and nails
keratin
hard protein material found in the epidermis, hair, and nails. keratin means horn and commonly is found in the horns of animals
lunula
half-moon-shaped, whitish area at the base of a nail
melanin
skin pigment. it is formed by melanocytes in the epidermis. Eumelanin is brown-black pigment, whereas pheomelanin is red-yellow
paronychium
soft tissue surrounding the nail border
pore
tiny opening on the surface of the skin
sebaceous gland
oil-secreting gland in the dermis that is associated with hair follicles
sebum
oily substance secreted by sebaceous glands
squamous epithelium
flat, scale-like cells composing the epidermis
stratified
arranged in layers
stratum (plural: strata)
a layer (of cells)
stratum corneum
outermost layer of the epidermis, which consists of flattened keratinized cells
subcutaneous layer
innermost layer of the skin, containing fat tissue
