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Medical Terminology
Chapter 2
| Term | Definition |
|---|---|
| corne/o | hard |
| hidr/o | sweat |
| kerat/o | hard |
| myc/o | fungus |
| onych/o | nail |
| plas/o | formation |
| epidermis | consists of several layers called strata |
| dermis | interlocks with epidermis above subcutaneous layer below, contains hair follicles |
| subcutaneous layer | below dermis, composed of adipose tissue |
| lucidum, granulosum, spinosum, basale | Layers of stratum from outermost to deep |
| dermis | also known as corium |
| collagen | protein substance in skin and connective tissue |
| keratin | hard protein structure in epidermis, hair and nails |
| macule, patch | Flat, discolored nonpalpable changes in skin color Primary lesions |
| papules, plaque, nodule, tumor, wheal | Elevated, palpable, solid masses Primary lesions |
| Vesicle, bulla, pustule | Elevation formed by fluid in cavity Primary lesions |
| Erosion, ulcer, excoriation, fissure | Loss of skin surface Secondary lesions |
| Scale, crust, keloid | Material on skin surface Secondary lesions |
| Cherry angioma, telangiectasia, petechia, ecchymosis | Vascular lesions |
| Macule | flat, discolored spot on skin up to 1 cm accross |
| Patch | flat, discolored area on skin larger than 1 cm |
| papule | solid mass on skin up to 0.5 cm in diameter |
| plaque | solid mass greater than 1 cm in diameter and limited to surface of skin |
| nodule | solid mass greater than 1 cm that extends deeper into epidermis |
| tumor | solid mass larger than 1-2 cm |
| wheal | area of localized skin edema |
| vesicle | little bladder; an elevated, fluid-filled sac (blister) within or under the epidermis up to 0.5 cm in diameter |
| bulla | blister larger than 0.5 cm |
| pustule | pus-filled sac |
| erosion | gnawed away; loss of superficial epidermis, leaving an area of moisture but no bleeding |
| ulcer | an open sore on the skin or mucous membrane that can bleed and scar; sometimes accompanied by infection |
| excoriation | scratch mark |
| fissure | linear crack in skin |
| scale | thin flake of exfoliated epidermis |
| crust | dried residue of serum, pus, blood |
| cherry angioma | small, round, bright red blood vessel tumor on the skin, seen mostly in people over age 30 |
| telangectasia | tiny, red blood vessel lesion formed by dilation of a group of blood vessels radiating from a central arteriole, most commonly on face, neck, or chest |
| spider angioma | tiny, red blood vessel lesion formed by dilation of a group of blood vessels radiating from a central arteriole, most commonly on face, neck, or chest |
| purpuric lesions | purpura; lesions resulting from hemorrhages into the skin |
| petechiae | spot; reddish-brown, minute hemorrhage spots on the skin that indicate a bleeding tendency; a small purpura |
| cicatrix of the skin | a mark left by the healing of a sore wound, showing the replacement of destroyed tissue by fibrous tissue |
| keloid | abnormal overgrowth of scar tissue that is thick and irregular |
Created by:
HannahLCobb
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