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23 Cards in this Set
- Front
- Back
dermis (tissue- fibers) |
dense connective, collagen, elastic |
|
stratum basale/germinativum |
basement (deep), mitotic layer, 1 cell layer |
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stratum spinosum |
prickly layer (cell shrinking), 8-10 cell layers thick (most abundant), desmosomes (hold cells together) |
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stratum granulosum (granual layer) |
transitional layer (alive--> dead); waterproofing (lam gran secrete lipid); 3-5 cell layers |
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stratum lucidum |
clear layer; thick skin and fingertips; 3-5 cell layers |
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stratum corneum (horny layer) |
25-30 flat dead cell layers |
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apoptosis |
programed cell death (old age); stratum granulosum |
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keratinization |
replacement cell contents w/ keratin |
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papillary region |
superior region dermis (20%); areolar w/ collagen and elastic |
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recticular region |
deep dermis (80%); little adipose w/ collagen and elastic |
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cutaneous plexus |
network blood vessels |
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dermal papilae |
bumps/pegs into epidermis |
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jaundice |
yellow, bilirubin from liver disease |
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cynanosis |
blue; lack oxygen hemoglobin |
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erythema |
redness from enlarged capillaries |
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melanin |
yellow, red-brown, black; skin color, freckles, moles |
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caratin |
yellow/orange; soles, palms |
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hemoglobin |
pink hue from blood |
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sudoriferous glands |
sweat glands |
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eccrine sweat gland |
palms, soles, forhead |
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apocrine sweat gland |
axillary and anal/genital region |
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ceruminous gland |
produces cerumen (earwax) |
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sebaceous glands |
oil glands |