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25 Cards in this Set
- Front
- Back
- 3rd side (hint)
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androgen
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generic term for an agent that stimulates development of male characteristics.
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Usually a hormone such as testosterone and androsterone.
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ductule
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A small duct.
duct to lead, carry. ule, small minute |
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homeostasis,
homeo same, stasis standing still |
regulatory system of the body, controls temperatur, acidity and the concentration of salt, food, and waste products
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synthesis
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Formation of a complex substance by the union of simpler compounds or elements.
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Skin synthesizes vitamin D
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skin
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integument.
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largets organ of the body
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hair, nails and glands
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accessory organs
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epidermis
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outer layer of the skyn, thing overy most areas, thickest on palm and sole.
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strata
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layers of the empidermis
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stratum corneum
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layer of the empidermis composed of dead, flat cells that lack a blood supply and sensory receptors.
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basal layer
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layer of the epidermis composedof living cells where new cells are formed.
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keratin
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hard protein that fills the death cells, prevents body fluids from evaporating and moisture from entering the body
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melanocytes
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are in teh basal area and produce melanin
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melanin
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provides a protective barrier from the damaging effects of the sun's ultraviolet radiation
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dermis or corium
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second layer of the skin, composed of living tissue and contains capillaries, lymphatic vessels and nerve endings.
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subcutaneous or hypodermis
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the 5th. layer of the epidermis binds the dermis to underlying structures. Connective and adipose tissue
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sudoriferous glands
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exocrine glands secrete prespiration onto the surface of the skingthroug pores. cool the body by evaporation, excrete waste products and moistend surface cells
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sebaceos glands
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exocrine glands fill with cell with containing fatty dropelts, secrete sebum that lubricates the skin
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hair shaft
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hair root
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hair follicle
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formed by the hair root and its coverings
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papilla
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loop of capillaries at the bottom of the follicle. The cluster of cells lying over the papilla regenerate the hair
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nails
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protect the tips of the fingers and toes from bruises and injuries
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nail root
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composed of keratinized, stratified, aquamous epithelial cells
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nail bed
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part of the nail that covers the epithelium
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nail body
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on top of the nail bed, it apears pink because of the underlying vascular tissue
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lunula
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region where the new grow occurs, vascular tissue does not show
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