Integumentary Vocabulary Flashcards
(38 cards)
body membrane
cover surfaces, line body cavities, and form protective/lubricative sheets around organs they fall into two major groups; epithelial membranes (cutaneous, mucous, serous) and connective tissue membranes (synovial)
epithelial membrane
covering and lining membranes, including the cutaneous membrane or skin, the mucous membranes, and the serous membranes however while all do contain an epithelial sheet, it is always combined with and underlying layer of conective tissue so really they are simple organs
serous membrane
membrane that lines a cavity without an opening to the outside of the body
serous fluid
a clear, watery fluid secreted by the cells of a serous membrane
synovial membrane
membrane that lines the capsule of a synovial joint
subcutaneous tissue
beneath the skin
peritoneum
the serous membrane lining the interior of the abdominal cavity and covering the surfaces of the abdominal organs
pleura
serous membrane covering the lings and lining the thoracic cavity
pericardium
the membranous sac enveloping the heart
skin
the thin layer of tissue forming the natural outer covering of the body
integument
a tough outer protective layer
keratin
a tough, insoluble protein found in tissues such as hair, nails and epidermis of the skin
epidermis
outer layers of the skin
dermis
deep layer of the skin; composed of dense, irregular connective tissue
stratum basale
the deepest layer of the five epidermis layers, which is the outer covering of skin
stratum spinosum
layer of the epidermis found between the stratum granulosum and stratum basale.
stratum granulosum
thin layer of cells in the epidermis
stratum lucidum
thin, clear layer of dead skin cells in the epidermis named for its translucent appearance under a microscope
stratum corneum
the horny outer layer of the skin.
melanin
a dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight
papillary layer
the superficial layer of the dermis raised into papillae that fit into corresponding depressions on the inner surface of the epidermis
exocrine glands
glands that have ducts through which their secretions are carried to a body surface
apocrine glands
less numerous type of sweat gland, produces a secretion containing water salts and proteins
dermal papillae
Any of the superficial projections of the corium or dermis that interlock with recesses in the overlying epidermis, contain vascular loops and specialized nerve endings, and are arranged in ridgelike lines most prominent in the hand and foot