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CNHP
Chapter 2
| question/term | answer/definition |
|---|---|
| the integumentary system is composed of which structures? | skin, hair, nails, sweat glands and sebaceous glands |
| what are the 4 functions of the integumentary system? | 1. protection from injury 2. protection from intrusion of microorganisms 3. regulation of body temperature 4. houses receptors for sense of touch |
| three layers of the skin | epidermis, dermis, subcutaneous |
| what layer of the epidermis is the site of cell production? | stratum basale (innermost layer) |
| what is the outmost layer of the epidermis made up of dead cells that are sloughed off? | stratum corneum |
| strata= | layers |
| the dermis contains | blood vessels, nerves, nerve endings, glands and hair follicles |
| what makes the skin tough and elastic? | collagen fibers |
| what type of tissue is the subcutaneous layer composed of? | adipose (fatty) tissue |
| steat/o, adip/o, lip/o | fat |
| corne/o | horn, hard |
| kerat/o and scler/o | hard |
| myc/o | fungus |
| onych/o | nail |
| squam/o | scale |
| trich/o | hair |
| xanth/o | yellow |
| xer/o | dry |
| different characteristics of primary lesions | - flat discolored, non palpable changes in skin color - elevated, palpable solid masses -elevation formed by fluid within a cavity |
| different characteristics of secondary lesions | -loss of skin surface -material on skin surface |
| primary lesions arise for previously ________ skin | normal |
| lesions that result in changes in primary lesions are known as | secondary lesions |
| vascular lesions | lesions of a blood vessel ex. cherry angioma and telangiectasia (spider angioma) |
| cherry angioma | round, bright red blood vessel tumor, often seen on trunk |
| telangiectasia | radiate from central arteriole, most often seen on face, neck or chest |
| purpuric lesions | lesions as a result of hemorrhages in the skin ex. petechia and ecchymosis |
| petechia | minute hemorrhagic spots that indicate a bleeding tendency |
| ecchymosis | bruise, black and blue mark, large |
| chymo= | juice |
| cicatrix= | scar |
| keloid | abnormal overgrowth of scar tissue that is thick and irregular |
| kele= | tumor |
| neoplasm | abnormal tissue that grows at a more rapid rate than normal |
| nevus | -benign localized overgrowth of melanin forming cells -can be epidermal or vascular aka mole |
| verruca | aka wart; epidermal growth caused by papilloma virus |
| BCC | basal cell carcinoma |
| C&S | culture and sensitivity |
| FS | frozen section |
Created by:
fhira1
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