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Bio 430 class with Professor Rogers
Terms in this set (39)
composed of epithelial cells, is the outermost protective shield of the body.
is to produce ketarin
fibrous protein that helps give the epidermis its protective properties
1) localized thickening of skin epidermis resulting form physical trauma
2) repair tissue (fibrous or bony) formed at a fracture site
an epiderman cell capable of synthesizing melanin
they ingest foreign substances and are key activators of our immune system
are present at the epidermal junction, each tactile cell is intimately associated with a disc like sensory nerve ending
deepest epidermal layer, is a continual renewing cell population
broad zone of 20 to 30 cell layers thick that accounts for up to three-quaters of the epidermal thickness (the outermost layer of the epidermis) consisting of dead or scale or flakes of cell
layers of skin deep to the epidermis;composed mostly of dense irregular connective tissue
areolar connective tissue in which fine interlocking collagen and elastic fibers form a loosely women mat that is heavily invested with small blood vessels.
houses free nerve ending (pain receptors) and touch receptors
any of the ridges of the epidermis of the palms and soles,where the sweat pores open.
accounts for about 80 % of the thickness of the dermis, is coarse, irregularly arranged, dense fibrous connective tissue.
separations, or less dense regions between bundles.
dermal folds that occur at or near joints, where the dermis is highly secure to deeper structures.
stretch marks, dermal tearing. leaves a white scar.
the separation of the epidermal and dermal layers by a fluid-filled pocket
chronic skin eruption produced by dilation of small blood vessels of the face, particularly nose and cheek. Common in women but severe in men. no known cause, but stress, some endocrine disorders and anything that produces flushing.
eccrine sweat gland
abundant in palms , soles of feet and forehead the secretory part lies coiled in dermis, and the duct extends to open in a funnel shaped pore at the skin surface.
apocrine sweat gland
aprox 2000 of them, largely confined to the axillary and onogenital areas, release their products by exocytosis like eccrine glands. they are deeper in the dermis or even in the hypodermic ad their ducts empty into hair follicles.
alveolar glands that are found all over the body except in thick skin of the palms and soles. These glands secrete an oily substance sebum
active inflammation of the sebaceous glands accompanied by "pimples" on the skin
fine pale hair found in children and adult females
coarser, longer hair of the eyebrows and scalp, maybe darker
scalelike modification of the epidermis that forms a clear protective covering on the dorsal surface of the distal part of a finger or toe.
basal cell carcinoma
least malignant and most common skin cancer. stratum basal cell proliferate invading the dermis and hypodermis, slow growing and metastasis seldom occurs before it is noticed
squamous cell carcinoma
second most common skin cancer- arises from the keratinocytes of the stratum spinosum . arises most often on the head and hands.Grows rapidly and metastasize if not removed.
cancer of melanocytes , dangerous skin cancer because it is highly metastatic and resistant to chemotherapy. Begins in pigments
tissue damage inflicted by intense hear, electricity,radiation or certain chemicals , all of which denature cell proteins and cause cell death in the affected areas
scaling and various kinds of skin inflammation
localized breakdown and ulceration of skin due to interference with its blood supply. occurs in hip and heel , that is subjected to continuous pressure, also called bedsore
chronic autoimmune condition characterized by raised , reddened epidermal patches covered with silvery scales that itch and burn. The autoimmune attacks are often triggered by trauma , infection, hormonal changes and stress. chemotherapeutic drugs provides some relief.
the temperature of structures deep within the body as opposed to peripheral temperature such as that of the skin.
the skin becomes hot and dry and , as the temperature continues to spiral upward , multiple organ damage becomes a distinct possibility , including brain damage.
heat associated extreme sweating and collapse of an individual during or following a vigorous physical activity
elevated body temperature. ensues depresses the hypothalamus
low body temperature- resulting from prolong uncontrolled exposure to cold vital signs (respiratory rate, blood pressure, and heat rate) decrease as cellular enzymes become sluggish.