Chapter 16 - Skin Flashcards
Adipocyte
fat cell
Albinism
Condition of skin deficient in pigment (melanin).
Apocrine sweat gland
One of the large dermal exocrine glands located in the axilla and genital areas. It secretes sweat that, in action 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 skin
Eccrine sweat gland
Most numerous sweat-producing exocrine gland in the skin.
Epidermis
outer most layer of 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
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.
