Epithelial System Flashcards
Epidermis
the most superficial layer of the skin
Dermis
middle layer of the skin
Hypodermis
deepest layer of the skin
Arrector Pili
smooth muscle that connects hair follicles and creates goosebumps
Sebaceous gland
a gland in the dermis or subcutaneous layer that produces oil
Functions of Sebum
keeps skin soft, pliable, and waterproof
Merocrine glads
coiled glands in the dermis that release sweat that is saltwater and functions to cool the body
aprocrine glands
sweat glands in the pubic and underarm layers that produce thicker sweat; produces odor when come in contact with bacteria on the skin
tactile receptors
provide sensations of touch pressure and vibration
nail
outgrowth of the skin, composed of keratin
Cuticle
living skin at the base of the natural nail palate that covers the matrix area
nailbed
skin that is below the overhang of the nail
melanin
one factor that determines skin color. a brownish black pigment found in the skin, retina, and hair
hypothermia
low body temperature- cam be caused by burns because the skin helps the body regulate temperature
4 functions of the skin
protection, regulation, sensation, and excretion