ch 3 & 4 for med terms
Terms
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- epidermis
- thin outer layer of the skin
-
dermis
corium - dense, fibrous connective tissue layer of the skin
- subcutaneous layer
- connective and adipose tissue layer just under the dermis
-
adip/o
lip/o
steat/o - fat
-
derm/o
dermat/o
cutane/o - skin
- erythr/o
- red
- hidr/o
- sweat
-
hist/o
histi/o - tissue
- kerat/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
- xer/o
- dry
- xanth/o
- yellow
- epithelium
- cells covering external and internal surfaces of the body
- squamous cell layer
- flat, scalelike epithelial cells comprising the outermost epidermis
- basal layer
- deepest layer of epidermis
- melanocyte
- cell in the basal layer that gives color to the skin
- melanin
- dark brown to black pigment contained in melanocytes
- sebaceous glands
- oil glands in the skin
- sebum
- oily substance secreted by teh sebaceous glands
- sudoriferous glands
- sweat glands
- collagen
- protein substance in skin and connective tissue
- hair
- outgrowth of the skin composed of keratin
- nail
- outgrowth of the skin at the end of each finger and toe, composed of keratin
- keratin
- hard protein material found in the peidermis, hair, and nails
- lesion
- an area of pathologically altered tissue
- primary lesions
- lesions arising from perviouly normal skin
- macule
- a flat, discolored spot on the skin up to 1 cm across (freckle)
- patch
- a flat, discolored area on the skin larger than 1 cm (vitiligo)
- papule
- a solid mass on the skin up to 0.5 cm in diameter (mole)
- 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, extending deeper into the epidermis
- tumor
- solid mass larger than 1-2 cm
- wheal
- an area of localized skin edema (hive)
- vesicle
- little bladder; an elevated, fluid-filled sac within or under the epidermis up to 0.5 cm in diamater (fever blister)
- bulla
- a blister larger than 0.5 cm (second degree burn)
- pustule
- a pus-filled sac
- ulcer
- an open sore on the skin that can bleed (decubitus ulcer)
- excoriation
- a scratch mark
- fissure
- a linear crack in the skin
- scale
- a thin flake of exfoliated epidermis (dandruff)
- crust
- dried residue of serum, pus, or blood on the skin
- keloid
- an abnormal overgrowth of scar tissue that is thick and irregular
-
telangiectasia
spider angioma - a tiny, red blood vessel lesion formed by the dilation of a group of blood vessels
- petechia
- spot; reddish-brown
- ecchymosis
- bruise; a black and blue mark
- nevus
- birthmark, mole
- verruca
- wart
- alopecia
- "fox mange", baldness
- comedo
- a blackhead caused by a plug of sebum
- erythema
- redness of skin
- pruritus
- severe itching
- urticaria
- hives
- xeroderma
- dry skin
-
rubella
varicella -
german measles
chicken pox - eczema
- to boil out, inflammation of papules and vesicles that crust and scale
- furuncle
- boil
- herpes zoster
- shingles
- impetigo
- highly contagious, bacterial skin inflammation marked by pustules that rupture and become crusted, most often around the mout hadn nostrils
- actinic keratoses
- thickening of teh skin caused by excesssive exposure to the sunlight
- lupus
- a chronic autoimmune disease
- onychia
- inflammation of the nail
- paronychia
- inflammation of nail fold
-
pediculosis capitis
pediculosis pubis -
head lice
crabs - psoriasis
- silver-gray scales
- tinea
- ringworm, athlete's foot