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sebaceous glands
- microscopic glands in the skin which secrete an oily/waxy matter, called sebum, to lubricate the skin and hair of mammals.
- I wikied this.
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integument
external covering of the body.
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function of the integument
covers the body and protects the underlying tissues from invasion of microbes and from drying out and harmful light rays. Other functions: control body temperature, receive stimuli form the environment, prevent excessive loss of temperature, excrete water and salt.
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epi dermis
- epi- = above
- derma = skin
- thin outer layer
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dermis
- derma = skin
- thick layer under epidermis
- contains numerous blood vessels, nerves, and glands, embedded hair follicles
- causes ridges = fingerprints
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sub cutane ous
- sub- = below
- cutane/o = skin
- -ous = pertaining to
- adipose tissue
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subcutaneous adipose tissue
fat that serves as insulation and a cushion against shock
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keratin
nonliving cells in the epidermis, constantly shed and replaced and to protect from microorganisms
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sclero protein
- scler/o = hard
- insoluble in most solvents
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accessory skin structures
hair, nails, sebaceous glands, and sweat glands.
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pilomotor muscles
- pil/o = hair
- motor = mover
- causes erection of the hairs of the skin in response to a chilly environment, emotional stimulus, or skin irritation
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sudoriferous glands
sweat glands
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perspiration
elimination of waste form from sweat glands
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sebum
oily substance that is responsible for lubrication of the skin
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follicles
tiny tubes of epidermal cells that contain the root of the hair shaft
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seb/o
sebum - keeps hair and skin soft, and inhibits growth of bacteria
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keratin
- kerat/o = hard or horny (pertaining to skin!)
- hard fibrous protein (deja vu, i think i used this word twice).
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lesion
any visible, localized abnormality of the skin, such as a wound, rash, or sore.
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nodule
- cause a raise are on the overlaying skin
- marble-like, solid lesion more than 1cm wide and deep
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cyst
filled with fluid or semisolid material
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macules
- freckles
- small and nonraised
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plaque
- dandruff
- elevated and appears as a large patch
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vesicles
- blisters or fluid-filled lesions
- smaller than bullae (bulla)
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bulla
blisters or fluid-filled lesions
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pustules
- blisters or fluid-filled lesions
- filled with cloudy fluid or pus
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wheals
- seen in an allergic skin eruption
- elevated and irregularly shaped lesions
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fissure
- athlete's foot
- linear cracks in the epidermis
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ulcers
deep, irregular erosions that extend into the dermis
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atrophy of the skin
- stretch marks
- thinning with the loss of skin markings
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scales
dried fragments of sloughed epidermis that are whitish and irregular in size and shape
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keloid
excessive overgrowth of unsightly scar tissue
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laceration
torn, jagged wound
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incision
smooth-edged wound produced by a sharp instrument
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a sept ic
- a- = without
- sept/o = infection
- -ic = pertaining to
- free of pathogenic organisms
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abrasion
skin is scraped or rubbed away by friction
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contusion
- bruise
- caused by a blow to the body that does not break the skin
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skin graft
skin is implanted to cover ares where skin has been lost
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topical medications
drugs placed directly on the skin
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bacterio static
- bacteri/o = bacteria
- -static = keeping stationary
- inhibiting the growth of bacteria
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bactericidal
killing bacteria
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asepsis
the absence of germs (absence of infection)
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sepsis
infection or contamination
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transdermal
- drug delivery method of applying a drug to unbroken skin.
- absorbed through the skin and then enters the circulatory system (for estrogen and nicotine)
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lipo suction
- suction-assisted lipectomy
- removes adipose tissue with a suction pump device
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