Chapter 4 (3) - Integumentary System Flashcards
Alopecia
Lack of hair in spots; Baldness
Adipose
Fatty; Relating to fat
Apocrine Glands
Glands that appear during and after puberty and secrete sweat, as from the armpits
Ceruminous Glands
Glands that secrete a waxy substance on the surface of the ear
Collagen
Major protein substance that is tough and flexible and that forms connective tissue in the body
Cuticle
Thin band of epidermis that surrounds the edge of nails, except at the top
Dermis
Layer of skin beneath the epidermis containing blood vessels, nerves, and some glands
Diaphoresis
Excretion of fluid by the sweat glands; sweating
Eccrine Glands
Sweat glands that occur all over the body, except where the apocrine glands occur
Epidermis
Outer portion of the skin containing several strata
Exocrine Glands
Glands that secrete through ducts toward the outside of the body
Integument
Skin and all the elements that are contained within and arise from it
Keratin
Hard, horny protein that forms nails and hair
Lunula
Half-moon shaped area at the base of the nail plate
Melanocyte
Cell in the epidermis that produces melanin
Papillary Layer
Thin sublayer of the dermis containing small papillae (nipple-like masses)
Pore
Opening or hole, particularly in the skin
Reticular Layer
Bottom sublayer of the dermis containing reticula (network of structures with connective tissue between)
Sebaceous Glands
Glands in the dermis that open to hair follicles and secrete sebum
Sebum
Oily substance, usually secreted into the hair follicle
Squamous Epithelium
Flat, scaly layer of cells that makes up the epidermis
Stratified Squamous Epithelium
Layers of epithelial cells that make up the strata of epithelium of the epidermis
Stratum
Layer of tissue, especially a layer of the skin
Stratum Corneum
Top sublayer of the epidermis