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Medical Terminology
Integumentary Terms
65
Medical
Undergraduate 1
02/19/2007

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Term
epithelium
Definition
tissue composed of a layer of cells
Term
epidermis
Definition
layer of dead cells on top of the dermis
Term
dermis
Definition
vascular skin layer
Term
keratin
Definition
waterproof protein in skin cells
Term
melanin
Definition
brown-colored protein - gives skin a dark color
Term
subcutaneous layer
Definition
fatty layer below the dermis
Term
sebaceous glands
Definition
the glands that produce skin oil
Term
sebum
Definition
mixture of fats, salts, water, and cholesterol
Term
sudoriferous glands
Definition
sweat glands
Term
abrasion
Definition
scraping wound
Term
abscess
Definition
collection of pus from an infection
Term
alopecia
Definition
loss of scalp hair
Term
cicatrix
Definition
scar
Term
comedo
Definition
blackhead/pimple (elevated lesion)
Term
contusion
Definition
bruise
Term
cyst
Definition
closed sack containing fluid
Term
edema
Definition
swelling caused by accumulation of fluid
Term
erythema
Definition
redness of skin
Term
fissure
Definition
small slit that extends into the dermis
Term
furuncle
Definition
skin infection from the hair follicle
Term
keloid
Definition
overgrowth of scar tissue
Term
laceration
Definition
torn/jagged wound
Term
lesion
Definition
change in tissues due to disease/injury
Term
macule
Definition
flat, pigmented area (>1 cm in diameter)
Term
nevus
Definition
mole/birthmark
Term
dysplastic nevus
Definition
an irregular mole/birthmark
Term
actinic keratosis
Definition
precancerous skin condition
Term
petechia
Definition
pinpoint skin hemorrhage
Term
pruritus
Definition
the symptom of itching
Term
purpura
Definition
purple-red discoloration
Term
pustule
Definition
>1 cm pus-filled lesion
Term
ulcer
Definition
an open sore that extends into the dermis
Term
urticaria
Definition
hives (allergic reaction)
Term
verruca
Definition
wart (skin elevation caused by a virus)
Term
vesicle
Definition
>.5 cm pus-filled lesion
Term
wheal
Definition
itchy, hard, colored lesion
Term
acne
Definition
inflammatory eruption - sebaceous infection by bacteria
Term
albinism
Definition
lack/reduction of melanin (genetic)
Term
decubitus ulcer
Definition
bed sore
Term
dermatitis
Definition
inflammation of the skin
Term
dermatofibroma
Definition
fibrous dermal tissue tumor
Term
ecchymosis
Definition
purplish patch - leaking blood vessels
Term
eczema
Definition
skin disease - redness, blisters, scaling, itching, and burning
Term
gangrene
Definition
tissue death - loss of blood supply
Term
herpes
Definition
clusters of deep blisters - virus caused
Term
hidradenitis
Definition
sweat gland inflammation
Term
hyperhidrosis
Definition
excessive perspiration
Term
impetigo
Definition
contagious skin infection
Term
melanoma
Definition
malignant skin tumor
Term
necrosis
Definition
disease-related tissue death
Term
onychocryptosis
Definition
ingrown nail
Term
onychomalacia
Definition
nail softening
Term
onychomycosis
Definition
fungal nail infection
Term
paronychia
Definition
infection around the nail
Term
pediculosis
Definition
lice infestation
Term
psoriasis
Definition
red lesions, silvery scales
Term
scleroderma
Definition
skin thickening (swelling of connective tissue)
Term
tinea
Definition
fungal skin infection (i.e. ringworm)
Term
vitiligo
Definition
whitish skin area caused by loss of pigment cells
Term
xeroderma
Definition
dry skin
Term
biopsy
Definition
removal of tissue for evaluation
Term
debridement
Definition
removal of dead/diseased tissue
Term
dermabrasion
Definition
removal of skin scars with abrasives
Term
hemangioma
Definition
abnormal build-up of blood vessels
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