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14 Cards in this Set
- Front
- Back
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anatomy of integumentary system |
avascular, innervated, 4-5 layers, keratinized stratified squamous et |
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integumentary system cell types |
keratinocytes, melanocytes, langerhans cells, merkel cells |
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keratinocytes |
mitotically active, keratin, desmosomes |
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melanocytes |
melanin, epidermal-dermal junctions |
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langerhans cells |
part of immune system, eat things destructive to body |
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merkel cells |
merkel discs, receptor cells |
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epidermis layers (top to bottom) |
corneum, lucidum, granulosum, spinosum, basale |
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stratum basale |
rapid cell division, bottom layer, keratinocytes, melanocytes, skin color, merkel cells |
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stratum spinosum |
spiny cells (cells lose water under microscope and desmosomes remain), desmosomes appear here, keratinocytes, langerhorns |
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stratum granulosum |
granules! Keratohylanie (produces keratin handling proteins that carry dead proteins), releases lamellar bodies that form waterproof lipid layer |
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stratum lucidum |
clear layer! for thick skin, dead keratin |
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stratum corneum |
15-20 layers of simple squamous epithelium dead |
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papillary dermis |
thin loose connective tissue (areolar), blood vessels,nerve endings, friction ridges- fingerprints |
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reticular dermis |
thicker dense irregular ct (anchor), hair follicle, glands, arrector pili muscle, langers lines, |
