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phm 316 ch 5
phm 315 ch 5
| Question | Answer |
|---|---|
| adip/o | fat |
| lip/o | fat |
| steat/o | fat |
| derm/o | skin |
| dermat/o | skin |
| cutane/o | skin |
| erythr/o | red |
| hidr/o | sweat |
| hist/o | tissue |
| histi/o | tissue |
| ischthy/o | fish |
| kerat/o | hard |
| scler/o | hard |
| leuk/o | white |
| melan/o | black |
| myc/o | fungus |
| onych/o | nail |
| plas/o | formation |
| purpur/o | purple |
| seb/o | sebum (oil) |
| squam/o | scale |
| trich/o | hair |
| xanth/o | yellow |
| xer/o | dry |
| epithelium | cells covering external and internal surfaces of the body |
| epidermis | thin, cellular outer layer of the skin |
| squamous cell layer | flat, scale-like epithelial cells comprising the outermost layers of the epidermis |
| basal layer | deepest region of the epidermis |
| melanocyte | a cell found in the basal layer that gives color to the skin |
| melanin | dark brown to black pigment contained in melanocytes |
| dermis | dense, fibrous connective tissue layer of the skin (also known as the corium) |
| sebaceous glands | oil glands in the skin |
| sebum | oily substance secreted by the sebaceous glands |
| sudoriferous glands | sweat glands |
| subcutaneous tissue | connective and adipose tissue layer under the dermis |
| collagen | protein substance found in skin and connective tissue |
| hair | outgrowth of the skin composed of keratin |
| keratin | hard protein material found in the epidermis |
| lesion | an area of pathologically altered tissue (two types: primary and secondary) |
| primary lesions | lesions arising from previously normal skin |
| flat, nonpalpapable changes in skin color | macule, and patch |
| macule | a flat, discolored spot on the skin up to 1 cm across |
| patch | a flat, discolored area of skin larger than 1 cm |
| elevated, palpable, solid masses | papule, plaque, nodule, tumor, wheal |
| papule | a solid mass on the skin up to 0.5 cm in diameter |
| plaque | a solid mass greater than 1 cm in diameter, limited to the surface of the skin |
| nodule | a solid mass greater than 1 cm which extends deep into the epidermis |
| tumor | a solid mass larger than 1-2 cm |
| wheal | an area of localized skin edema (ex a hive) |
| elevation formed by fluid within a cavity | vesicle, bulla, pustule |
| vesicle | little bladder; an elevated, fluid-filled sac (blister) within or under the epidermis up to 0.5cm in diameter (ex a fever blister) |
| bulla | a blister larger than 0.5 cm (ex a second degree burn) |
| pustule | a pus filled sac (ex a pimple) |
| secondary lesions | lesions that result in changes in primary lesions |
| loss of skin surface | erosion, ulcer, excoriation, fissure |
| erosion | to gnaw away, loss of superficial epidermis leaving an area of moisture but no bleeding. (ex area of moisture after rupture of a vesicle) |
| ulcer | an open sore on the skin or mucous membrane that can bleed and scar and is sometimes accompanied by infection |
| excoriation | a scratch mark |
| fissure | a linear crack in the skin |
| material on the skin surface | scale, crust |
| scale | a thin flake of exfoliated epidermis (ex dandruff) |
| crust | dried residue of serum (body liquid), pus, or blood on the skin (ex in impetigo) |
| cicatrix of the skin | a mark left by the healing of a sore or sound showing the replacement of destroyed tissue by fibrous tissue |
| keloid | an abnormal overgrowth of scar tissue that is thick and irregular |
| vascular lesions | lesions of a blood vessel: cherry angioma, telangiectasia |
| cherry angioma | a small, round, bright-red blood vessel tumor on the skin, often on the trunk of the elderly |
| telangiectasia | a tiny, red blood vessel lesion formed by the dilation of a group of blood vessels radiating from a central arteriole. most commonly seen on the face, neck, or chest. AKA spider angioma |
| spider angioma | a tiny, red blood vessel lesion formed by the dilation of a group of blood vessels radiating from a central arteriole. most commonly seen on the face, neck, or chest. AKA telangiectasia |
| purpuric lesions | purpura; lesions as a result of hemorrhages into the skin. Petechia and ecchymosis |
| petechia | spot; a reddish-brown, minute hemorrhagic spot on the skin that indicate a bleeding tendency - small purpura |
| ecchymosis | bruise; a black and blue mark - large purpura |
| epidermal tumors | skin tumors arising from the epidermis |
| nevus | a congenital malformation on the skin that can be epidermal or vascular - also called a mole |
| dysplastic nevus | a mole with precancerous changes |
| verruca | an epidermal tumor caused by a papilloma virus - also called a wart |
Created by:
HugsAndKisses
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