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20 Cards in this Set
- Front
- Back
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functions of the skin
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*covers the body
*protects the body *sensory receptors *excretes sweat, urea, lactic acid *produces vit d regulation of body temp regulation of blood pressure stops fluid loss |
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epidermis layers*
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stratum corneum
lucidum granulosum spinosum basale |
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dermis contains*
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glands (sweat, wax)
hair follicles lymph vessels nerve/blood supply |
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diff btw apocrine and mesocrine sweat glands
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apocrine - close to hair (armpit)
mesocrine - other areas, like palms |
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properties of hair*
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shaft above surface
root penetrates dermis cuticle & follicle in dermis color is genetically determined gray hair - replacement of melanin by air |
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color of skin is determined by*
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melanin, carotene, hemoglobin
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heat is produced by
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muscles, liver, digestive organs
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heat loss by
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thru skin, regulated
thru urine & expiration |
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hypothermia
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rectal temp below 35ºC/95ºF
death below 20ºC |
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heat loss controlled by
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nervous system, vasomotor center
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nails
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epidermal cells converted to hard keratin plates
nail bed - highly vascular lunula - site of new growth cuticle - stratum corneum |
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sebaceous glands
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Secrete sebum
Keeps hair soft provides water proofing for the skin is anti-microbial increases in puberty and decreases with age |
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sensation types
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touch, pressure, vibration, tickle, heat, cold & pain
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psoriasis
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chronic, recurent disease of keratin synthesis
dry, scaly, silvery, shiny, maybe bleeding |
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skin viral conditions
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herpes - cold sores
hpv - warts |
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bacterial skin infections
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erysipalis
boils impetigo |
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genetic skin conditions
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eczema
psoriasis vitiligo |
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acne rosacea
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chronic inflammatory disorder
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lichen planus
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itchy purple papules, flat, white on top, slight depression on skin and mucosa
unknown cause |
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tumor warning signs
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sore throat that doesn't heal
change in shape, size, color, texture of lesion new moles or odd shaped lesions lesion that bleeds, oozes fluid or itches |
