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Chapter 4
Integumentary System
144
Medical
Undergraduate 1
02/12/2008

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Term
a-
Definition
wihtout
Term
an-
Definition
without
Term
ep-
Definition
upon, on, over
Term
epi-
Definition
upon, on, over
Term
intra-
Definition
within
Term
per-
Definition
through
Term
sub-
Definition
beneath
Term
aden
Definition
gland
Term
auto
Definition
self
Term
bi (word root)
Definition
life
Term
crypt
Definition
hidden
Term
cutane
Definition
skin
Term
derm, derma, dermat
Definition
skin
Term
eryth, erthyr
Definition
red
Term
heter
Definition
other
Term
hidr
Definition
sweat
Term
kerat
Definition
horny tissue, hard outer layer
Term
leuk
Definition
white
Term
myc
Definition
fungus
Term
necr
Definition
death
Term
onych
Definition
nail
Term
pachy
Definition
thick
Term
ryhtid
Definition
wrinkles
Term
scler
Definition
thick
Term
seb
Definition
sebum, or oil
Term
trich
Definition
hair
Term
xer
Definition
dry
Term
-ectomy
Definition
surgical removal, or excision
Term
-ia
Definition
condition of a diseased or abnormal state
Term
-is
Definition
pertaining to
Term
-itis
Definition
inflammation
Term
-malacia
Definition
softening
Term
-opsy
Definition
view of
Term
-osis
Definition
condition of
Term
-ous
Definition
pertaining to
Term
-phagia
Definition
eating or swallowing
Term
-plasty
Definition
surgical repair
Term
-rrhea
Definition
excessive discharge
Term
-tome
Definition
instrument used to cut material
Term
collagen
Definition
a tough protein forming the white fibers of connective tissue
Term
subcutaneous
Definition
pertaining to under the skin; abbreviated sc
Term
dermis
Definition
the lower vascular layer 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 browish pigment
Term
eponychium
Definition
a flap of dead epithelial cells at the edge of a nail; also called 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
cuticle
Definition
a flap of dead epithelial cells at the edge of a nail
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
hari follicle
Definition
a sheath of epithelium that surrounds the hair root
Term
hair root
Definition
the part of a hair that is located beneath the skin surface
Term
hair shaft
Definition
the part of a hari 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 receptor
Definition
a sepcialized ending of a sensory neuron that responds to a particular stimulus
Term
sweat glands
Definition
coiled, tubular glands in the dermis that secrete sweat onto the skin surface
Term
dermatology
Definition
the field that specializes in the health and disease of the integumentary system
Term
abrasion
Definition
a skin wound caused by scraping
Term
abscess
Definition
a collection of pus from a localized infection
Term
alopecia
Definition
a loss of lack of scalp haird; also called "baldness"
Term
cellulite
Definition
a local uneven surface of skin caused by fat deposition, usually in the thighs and buttocks
Term
cicatrix
Definition
a scar
Term
comedo
Definition
an elevated lesion formed from the buildup of sebum and keratin; also called a pimple
Term
contusuion
Definition
an injury to the skin causing discoloration and swelling without breaking the skin surface; also called a 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 ares on the skin or elsewhere
Term
jaundice
Definition
an abnormal yellow coloring of the skin; also called xanthoderma
Term
keloid
Definition
an overgrowth of scar tissue
Term
laceration
Definition
a torn or jagged wound
Term
lesion
Definition
a change in tissues due to disease or injury
Term
macule
Definition
a discolored flat spot, such as a freckle
Term
nevus
Definition
a circumscribed pigmented area, a mole, or a birthmark; plural form is nevi
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 (a hemorrhage is a break in blood vessels); the plural form is petechiae
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 skin lesion of the skin or mucous membrane
Term
urticaria
Definition
skin eruption usually caused by an allergic reaction of foods, infection, or injury; also called hives
Term
verruca
Definition
a small circumscribed skin elevation caused by a virus; also called a wart
Term
vesicle
Definition
a small elevation of the epidermis that contains fluid; also called a blister
Term
wheal
Definition
a temporary, itchy elevation of the skin, usually with a white and red perimeter; also called a welt
Term
acne
Definition
an 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. It is marked by overgrowths of the outer epidermal layer
Term
albinism
Definition
a genetic condition characterized by the lack or reduction of melanin; an individual with this condition is referred to as albino
Term
basal cell carcinoma
Definition
a tumor arising from the epithelium of the epidermis; it can spread locally if not treated, but seldom metastasizes
Term
carbuncle
Definition
a skin infection composed of a cluster of boils caused by staphylococci 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 lying down; also called a 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 of reduction in blood supply
Term
herpes
Definition
a skin eruption characterized by clusters of deep blisters that appear periodically; there are many variations, all of which are caused by members of the virus family Herpesvirus
Term
hidradenitis
Definition
inflammation of 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
leiodermia
Definition
abnormally smooth skin
Term
leukoderma
Definition
abnormally light-colored skin
Term
melanoma
Definition
malignant skin tumor that arises from melanocytes (pigmented cells)
Term
necrosis
Definition
disease-related death of tissue
Term
onychocryptosis
Definition
ingrown nail (abnormally buried in skin)
Term
onychomycosis
Definition
softening of the nails
Term
onychomycosis
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
infection 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
skin eruption caused by the female itch mite, which burrows into the skin to extract blood; this disorder causes mild dermatitis (redness, swelling, and itching)
Term
scleroderma
Definition
thickening of the skin caused by swelling and thickening of fibrous connective tissue
Term
seborrhea
Definition
sebaceous gland hyperactivity, resulting in excessive discharge of sebum
Term
squamous cell carcinoma
Definition
a skin cancer arising from the epidermis, it usually appears as a firm, red elevation with scales; it grows relatively slow but it is capable of metastasis in its later stages, abbreviated SqCCa
Term
systemis lupus erythematosus
Definition
a chronic inflammatory disease of connective tissue affecting the skin and many other organs; its early stages are characterized by red patches on the face and joint pain; abbreviated SLE and commonly called lupus
Term
tinea
Definition
a fungal infection of the skin; also called 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 ares of the skin
Term
xeroderma
Definition
abnormally dry skin
Term
biopsy
Definition
surgical removal of tissue for evaluation; abbreviated bx
Term
debridement
Definition
removal of diseased of dead tissue and foreign matter from a wound
Term
dermabrasion
Definition
removal of skin scars with abrasives, such as sandpaper
Term
dermatoautoplasty
Definition
surgical repair using the patient's skin for a skin graft; also called an autograft
Term
dermatoheteroplasty
Definition
surgical repair using skin from a source other than the patient for a skin graft; also called allograft
Term
dermatone
Definition
an instrument used to cut skin
Term
dermatoplasty
Definition
surgical repair of the skin
Term
emollient
Definition
an agent the softens or smooths the skin
Term
onychectomy
Definition
excision (surgical removal) of a nail
Term
percutaneous
Definition
pertaining to through the skin
Term
rhytidectomy
Definition
excision of wrinkles
Term
rythidoplasty
Definition
surgical repair of wrinkles
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