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PT 100 Integumentary System
definitions
102
Other
Undergraduate 2
02/23/2008

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Term
collagen
Definition
a tough protein forming white fibers of connective tissue
Term
subcutaneous (sc)
Definition
pertaining to under the skin
Term
dermis
Definition
the lower vascular of skin composed of connective tissue
Term
epidermis
Definition

the upper layer of skin, composed of epithelial tissue

Term
hypodermic
Definition
pertaining to under the skin
Term
intradermal
Definition
pertaining to within the skin
Term
elastin
Definition
an elastic protein of connective tissue
Term
keratin
Definition
water-proofing protein of the epidermis and hair
Term
keratogenic
Definition
originating from the outer epidermal layers
Term
melanin
Definition
protein of the skin that provides a brownish pigment
Term
eponychium
Definition
a flap of dead epithelial cells at the edge of a nail; cuticle
Term
sebaceous glands
Definition
oil glands embedded within the skin
Term
sebum
Definition
a mixture of oil, salts, water and cholesterol secreted by sebaceous glands
Term
hair
Definition
composed of a hair root that is formed from living cells below the skin surface, and a hair shaft that extends above the skin surface
Term
hair root
Definition
the part of a hair that is located beneath the skin surface
Term
hair shaft
Definition
the part of a hair located above the skin surface
Term
lunula
Definition
the pale area at the proximal end of the nail
Term
nail
Definition
a flattened disk at the distal ends of the fingers and toes composed of compressed, dead epithelial cells
Term
sensory receptors
Definition
a specialized ending of a sensory neuron that responds to a partiuclar stimulus
Term
sweat glands
Definition
coiled, tubular in the dermis that secrete sweat onto the skin surface
Term
abrasion
Definition
a skin wound caused by scraping
Term
abcess
Definition
a collection of pus from a localized infection
Term
alopecia
Definition
a loss or lack of scalp hair; baldness
Term
cellulite
Definition
a local uneven surface of the skin caused by fat deposition, usually in the thighs or buttocks
Term
cicatrix
Definition
a scar
Term
comedo
Definition
an elevated lesion formed from the buildup of sebum and keratin; pimple
Term
contusion
Definition
an injury to the skin causing discoloration and swelling without breaking the skin surface; bruise
Term
cyst
Definition
a closed sac or pouch containing fluid
Term
diaphoresis
Definition
profuse (not necessarily excessive) sweating
Term
edema
Definition
swelling caused by accumulation of fluid
Term
erythema
Definition
general term for redness of the skin
Term
fissure
Definition
a narrow break or slit in the skin
Term
furuncle
Definition
a localized skin infection originating from a hair follicle
Term
induration
Definition
the formation of local hard areas on the skin or elsewhere
Term
jaundice
Definition
an abnormal yellow coloring of the skin; xanthoderma
Term
keloid
Definition
an overgrowth of scar tissue
Term
laceration
Definition
a torn or jagged wound
Term
lesion
Definition
a change in the tissues due to disease or injury
Term
macule
Definition
a discolored flat spot; like a freckle
Term
nevus
Definition
a circumscribed pigmented area, a mole or a birthmark
Term
pallor
Definition
abnormal lack of skin color; paleness
Term
papule
Definition
a small solid, circumscribed skin elevation
Term
petechia
Definition
a pinpoint skin hemorrhage
Term
pruritus
Definition
a symptom of itching
Term
purpura
Definition
a purple-red discoloration resulting from hemorrhage into the skin
Term
pustule
Definition
a small circumscribed skin elevation that contains pus
Term
ulcer
Definition
an eroded lesion of the skin or mucus membrane
Term
urticaria
Definition
skin eruption usually caused by an allergic reaction to foods, infection, or injury; hives
Term
verruca
Definition
a small circumscribed skin elevation caused by a virus; wart
Term
vesicle
Definition
a small elevation of the epidermis that contains fluid; blister
Term
wheal
Definition
a temporary, itchy elevation of the skin, usually with a white center and red perimeter; welt
Term
acne
Definition
am inflammatory eruption of the skin caused by bacterial infection of sebaceous glands and ducts
Term
actinic keratosis
Definition
a precancerous skin condition caused by exposure to sunlight
Term
albinism
Definition
a genetic condition characterized by the lack or reduction of melanin
Term
basal cell carcinoma (BCC)
Definition

a tumor arising from the epithelium of the epidermis

Term
carbuncle
Definition
a skin infection composed of a cluster of boils caused by stapylococci bacteria
Term
cellulitis
Definition
inflammation of connective tissue (in the dermis) caused by infection
Term
decubitus ulcer
Definition
a skin sore caused by pressure or immobility while laying down; bed sore
Term
dermatitis
Definition
inflammation of the skin
Term
dermatofibroma
Definition
fibrous tumor of the skin
Term
ecchymosis
Definition
a purplish patch on the skin caused by leaking blood vessels
Term
eczema
Definition
an inflammatory skin disease characterized by redness, blisters, scaling and sensations of itching and burning
Term

erythroderma

Definition
abnormal redness of the skin
Term
gangrene
Definition
tissue death and decay caused by loss or reduction in blood supply
Term
herpes
Definition
a skin eruption characterized by clusters of deep blisters that appear periodically
Term
hidradenitis
Definition
inflammation of a sweat gland
Term
hyperhidrosis
Definition
excessive perspiration
Term
impetigo
Definition
contagious skin infection characterized by blisters that later erupt to form a yellowish crust
Term
Kaposi's sarcoma
Definition
a form of skin cancer  characterized by the formation of purple or brown patches on the skin that spread by way of lymphatics; used as a sign of AIDS
Term
leioderma
Definition
abnormally smooth skin
Term
leukoderma
Definition
abnormally light-colored skin
Term
melanoma
Definition
malignant tumor that arises from melnocytes (pigmented cells)
Term
necrosis
Definition
disease-related death of tissue
Term
onychocryptosis
Definition
ingrown nail (abnormally buried in the skin)
Term
onychomalacia
Definition
softening of the nails
Term
onychmycosis
Definition
fungal infection of the nails
Term
onychophagia
Definition
abnormal behavior of nail biting or eating
Term
pachyderma
Definition
abnormal thickening of the skin
Term
paronychia
Definition
infection around the nail
Term
pediculosis
Definition
infestation of the hair and skin with lice
Term
psoriasis
Definition
a chronic skin condition characterized by red lesions covered with silvery scales
Term
scabies
Definition
sin eruption caused by the female itch mite, which burrows into the skin to extract blood
Term
scleroderma
Definition
thickening of the skin caused by swelling and thickening of fibrous connective tissue
Term
seborrhea
Definition
sebaceous gland hyperactivity
Term
squamous cell carcinoma (SqCCa)
Definition
a skin cancer srising from the epidermis, it usually appears as a firm, red elevation with scales
Term
systematic lupus erythematosis (SLE)
Definition
a chronic inflammatory disease of connective tissue affecting the skin and many other organs; lupus
Term
tinea
Definition
a fungal infection of the skin; ringworm
Term
trichomycosis
Definition
fungus on the hair surface
Term
vitiligo
Definition
a condition in which a loss of pigment-producing cells results in whitish areas of skin
Term
xeroderma
Definition
abnormally dry skin
Term
biopsy (bx)
Definition

surgical removal of tissue for evaluation

Term
debridement
Definition
removal of diseased or dead tissue and foreign matter from a wound
Term
dermabrasion
Definition
removal of skin scars with abrasives
Term
dermatoautoplasty
Definition
surgical repair using the patient's skin for a skin graft; autograft
Term
dermatoheteroplasty
Definition
surgical repair using skin from a source other than the patient for a skin graft; allograft
Term
dermatome
Definition
an instrument used to cut skin
Term
dermatoplasty
Definition
surgical repair of the skin
Term
emollient
Definition
an agent that softens or smoothes the skin
Term
onychectomy
Definition
excision (surgical removal) of a nail
Term
percutaneous
Definition
pertaining through the skin
Term
rhytidectomy
Definition
excision of wrinkles
Term
rhytidoplasty
Definition
surgical repair of wrinkles
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