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Integumentary System
| Question | Answer |
|---|---|
| What are the four functions of the Integumentary System? | Protects body from injury, from intrusion microorganisms, help regulate body temperature, and houses receptors for sense of touch |
| What are the three layers of skin? | Epidermis, Dermis, Subcutaneous |
| Epidermis consists of? | Strata |
| Stratum basale | site of cell production |
| Stratum corneum | layers of dead cells sloughed off |
| Dermis | middle layer |
| What does the Dermis contain | blood vessels, nerves, nerve endings, glands, and hair follicles |
| Subcutaneous | inner layer |
| What is the subcutaneous composed of | adipose(fatty) tissue |
| adip/o, lip/o, steat/o | fat |
| cutane/o, derm/o, dermat/o | skin |
| hidr/o | sweat |
| hist/o, histi/o | tissue |
| kerat/o, scler/o | hard |
| myc/o | fungus |
| trich/o | hair |
| Lesions | arise from previously normal skin |
| Flat, nonpalablechanges in skin color | Ex: macule/macula, patch |
| Elevated, palpable, solid mass | Ex: papule, plaque, nodule, tumor, wheal |
| Elevation formed by fluid within a cavity | Ex: vesicle, bulla, pustule |
| cherry angioma | round, bright red blood vessel tumor; often seen on trunk |
| telangiectasia(spider angioma) | radiate from central arteriole; most often found on face, neck, or chest |
| petechia | minute hemorrhagic spot that indicate a bleeding tendency |
| ecchymosis | bruise, black and blue mark; a large purpura(chymo=juice) |
| cicatrix | scar |
| keloid | abnormal overgrowth of scar tissue that is thick and iregular |
| Kele | tumor |
| neoplasm | abnormal tissue that grows by more rapid than normal |
| verruca | epidermal growth caused by a papilloma virus(wart) |
| BCC | basal cell carcinoma |