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8 Cards in this Set
- Front
- Back
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4 main functions of epidermis
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Protection, thermoregulation, mediation of sensation, metabolism (fat, Vita D)
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List the 5 layer of the epidermis, starting at basement membrane
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1) Basal layer
2) Spinous layer 3) Granular layer 4) Lucid layer 5) Cornified layer |
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Basal \Layer
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all mitosis happens here. Hemidesmosomes anchor cells to BM
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Spinous Layer
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Cells shrink away from each other (during tissue processing) but remain attached to hemidesmosomes (so they look "spinous"
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Granular Layer
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Keratohyalin Granules are present. Cells start to flatten.
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Lucid Layer
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Found only in thick skin.
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Cornified Layer
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Layers of dried, waxy, keratinized (cornified) cells Responsible for dehydration resistance.
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2 types of glands found in the dermis
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Sweat (eccrine and apocrine) - have long coiled ducts that reach to epidermis; sebaceous - secrete oil into hair follicles.
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