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ALH Chapter 5
Integumentary System
| Term | Definition |
|---|---|
| integument | skin |
| androgen | generic term for an agent (usually a hormone) |
| ductule | very small duct |
| synthesize | to form |
| two layers of the skin | epidermis and dermis |
| epidermis composed of | stratum corneum and basal layer |
| stratum corneum composed of | dead cells |
| stratum corneum lacks | blood supply and sensory recpetors |
| keratin is | water proof |
| melanocytes | in the basal layer. Produce melanin |
| melanin | provides a protective barrier from the sun. Black |
| albinos cannot produce | melanin |
| dermis (corium) | second layer of the skin |
| dermis is composed of | living tissue, vessels,nerve endings, hair follicles, oil glans and sweat glands |
| subcutaneous layer (hypodermis) | third layer |
| subcutaneous layer composed of | fat and blood vessels |
| accessory organs of the skin | glands, hair and nails |
| sudoriferous glands | produce sweat. cool body, excrete waste and moisten surface cells |
| sebaceous glands | produce oil. |
| exocrine glands | secrete substances through ducts to an outer surface of the body not into the bloodstream |
| axillae | armpits |
| sebum | oily secretion. destroys harmful organisms, preventing infection |
| hair shaft | visible part of hair |
| hair root | part embedded in the dermis |
| hair follicle | hair root and its coverings |
| papilla | loop of capillaries at the bottom of the follicle |
| alopecia | baldness. occurs when the hairs of the scalp are not replaced because of death of the papillae |
| nail root composed of | keratinized, stratified, squamous epithelial cells |
| nail bed | layer of epithelium |
| nail body appears pink because of the | underlying vascular tissue |
| lunula | region where new growth occurs. white half moon |
| adipo | fat |
| lipo | fat |
| steato | fat |
| cutaneo | skin |
| dermato | skin |
| dermo | skin |
| hidro | sweat |
| sudoro | sweat |
| ichthyo | dry, scaly |
| kerato | horny tissue, hard |
| melano | black |
| myco | fungus |
| onycho | nail |
| ungu | nail |
| pilo | hair |
| tricho | hair |
| sclero | hardening |
| sebo | sebum |
| squamo | scale |
| xeno | foreign, strange |
| xero | dry |
| -cyte | cell |
| -derma | skin |
| -logist | specialist in the study of |
| -logy | study of |
| -therapy | treatment |
| an | without |
| dia | through, across |
| epi | above |
| homo | same |
| hyper | excessive |
| sub | below, under |
| dermatology | medical specialty of skin disorders |
| lesions | areas of tissue that have been pathologically altered by injury, wound or infection |
| localized | area of definite size |
| systemis | widespread |
| primary skin lesions | initial reaction |
Created by:
Gianna B
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