Term
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Definition
stratified squamous epithelium, keratinized
basement membrane and three layers |
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Term
| three layers of living cells |
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Definition
stratum basale (mitosis)
stratum spinosum (desmosomes form for biding, make keratin)
stratum granulosum (makes 2 granule types: to form mature keratin and waterproofing to protect from dehydration) |
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Term
| functions of skin and hypodermis |
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Definition
| protection, regulate body temperature, excretion, make vitamin D, sensory reception |
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Term
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Definition
keratinocytes,
below stratum granulosum:
melanocytes (make melanin),
tactile epithelial cells (merkel),
dendritic
Langerhans (immune) |
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Term
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Definition
| stratum lucidum, stratum corneum (surface) |
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Term
| five skin layers from outside in |
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Definition
| corneum (horny), lucidum (clear, thick only), granulosum (granular), spinosum (spiny), basale (germ) |
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Term
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Definition
| come from deep epidermis, make keratin (tough, fibrous) and antibodies and enzymes |
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Term
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Definition
| hair, eccrine sweat glands, apocrine sweat glands (armpit, expell tip of cell), arrector pili (goose bump), sebaceous glands |
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Term
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Definition
less dense, irregular, has blood vessels and nerves
two layers: papillary and reticular (most, deep)
has meissner's and pacinian corpuscles (touch and pressure) |
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Term
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Definition
| amount of stratum corneum, presence of stratum lucidum, different levels of keratin |
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Term
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Definition
merocrine: release secretion granules (eccrine)
apocrine: release apex of cell
holocrine: release whole cell (sebaceaous)
cytogenous: part of cell transferred (melanocytes) |
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Term
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Definition
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Term
| stratum granulosum produces ___ |
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Definition
keratohyalin
lamellated granules (make keratin and waterproof) |
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