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MT Ch 12 Integumentary System

epidermis the thin outer layer of the skin
dermis located under the epidermis, contains accessory structures of the integumentary system
adipose fatty layer
pilomotor muscles cause erection of the hairs of the skin in response to a chilly environment, emotional stimulus, or skin irritation
sudoriferous glands sweat glands
sebum oily substance produced by sebaceous glands
lesion any visible, localized abnormality of the skin, such as a wound, rash or sore
nodule marble-like, solid lesion more than 1 cm wide and deep
cyst sac filled with fluid or semi-solid material
macule small nonraised (freckle)
papule elevated lesion less than 1 cm (mole)
plaques eleveated and circular patches more than 1 cm in diameter (dandruff)
vessicle blisters less than 1 cm and filled with clear fluid
bullae blisters greater than 1 cm and filled with clear fluid
pustules vesicles filled with cloudy fluid or pus
wheals elevated and irregularly shaped lesions often seen in allergic reactions (hives)
Atrophy thinning of the skin with the loss of skin markings (stretch mark)
Ulcers deep, irregular erosions that extend into the dermis
Fissure linear cracks in the epidermis (Athlete's Foot)
Keloid excessive overgrowth of unsightly scar tissue
laceration torn, jagged wound
incision smooth-edged wound produced by a sharp instrument
aseptic free of pahtogenic organisms (disease causing germs)
abrasion skin is scraped or rubbed away by friction
contusion caused by a blow to the body that does not break the skin (bruise)
skin graft skin is implanted to cover areas where skin has been lost
Superficial burn first degree, only epidermis, red, no immediate blisters
deep partial-thickness burn second degree, extends into dermis, red and moist, blistered
full thickness third degree, throughout the dermis and third degree, epidermis, sometimes into the subcutaneous layer, hard, dry and leathery, whit, deep red, yellow, brown to black
Deep full thickness fourth degree, no skin layers remain, underlying bone and muscle are damaged, wound is blackened and depressed, muscle and bone are exposed
abcess a cavity that contains pus caused by an infectious microorganism and surrounded by inflamed tissue
albinism an absence of normal pigmentation, present at birth
cellulitis an acute infection of the skin and subcutaneous tissue characterized most commonly by local heat, redness, pain and swelling
cyanosis a bluish discoloration of the skin and mucous membranes
dermatitis an inflammatory condition of the skin
discoid lupus erythematosus (DLE) chronic disorder, primarily of the skin, characterized by lesions that are covered with scales (reddish facial "butterfly" rash)
frostbite damage to skin, tissues and blood vessels as a result of proloned exposure to cold
furuncle boil, localized skin infection originating in a gland or hair follicle
hypopigmentation unusual lack of skin color
ichthyosis skin that is dry and scaly, resembling fish skin
lipoma a benign tumor consisting of mature fat cells
malignant melanoma skin cancer, composed of melanocytes
mycodermatitis inflammation of skin caused by a fungus
necrosis death of areas of damaged or diseased tissue or bone surrounded by healthy tissue
onychomycosis fungal infection of the nail
pediculosis lice
petechiae tiny purple or red spots appearing on the skin as a result of tiny hemorrhages withing dermal or submucosal layers (hickey)
ungual pertaining to the nail
Adipose fatty subcutaneous layer of fat that serves as insulation and a cushion against shock. Below dermis
integument skin or external covering of the body
Created by: MrsSlagter