Skin

layer containing sacs filled with fatty material or keratin subunits

Dead cells

the more superficial dermis layer

avascular region

major skin area where derivatives (nails and hair) are located

epidermal region exhibiting the most mitoses

most superficial epidermal layer

has abundant elastic and collagenic fibers

region where melanocytes are most likely to be found

accounts for most of the epidermis

acne is an infection of this

Structure that houses the hair

more numerous variety of perspiration gland that produces a secretion containing water, salts, and vitamin C: activated by rise in temperature

Sheath formed of both epithelial and connective tissues

type of perspiration-producing gland that produces a secretion containing proteins and fats in addition to water and salts

found everywhere on body except palms of hands and soles of feet

primarily dead/keratinized cells

specialized nerve endings that respond to temperature, touch, etc.

its secretion contains cell fragments

sports" a lunule and a cuticle