Term
| Inetgumentary system is composed of... |
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Definition
| skin, nails, hair, sweat glands and sebaceous glands |
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Term
| structure of skin has __ main layers |
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Definition
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Term
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Definition
- outer layer
- usually thin (exception: palm of hand and soles of feet)
- divided into five "strata" (layers)
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Term
| order of strata from superficial to deep |
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Definition
- stratum corneum
- stratum lucidum
- stratum granulosm
- stratum spinosum
- stratum basale
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Term
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Definition
- most superficial
- dead cells filled with keratin
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Term
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Definition
| a water repellant protien |
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Term
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Definition
- clear layer found in loose skin only
- contains eleiden cells, a precursor to keratin
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Term
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Definition
- stratum spinosum
- stratum basale
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Term
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Definition
- 8-10 layers of irregularly shaped cells
- contains prominent intercellular bridges/desmosomes
- rich in rna
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Term
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Definition
- cells divide by mitosis
- continuously replaces cells lost
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Term
| dermal-epidermal junction |
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Definition
| cells of epidermis join the cells of the dermis |
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Term
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Definition
| second inner layer, thinner layer |
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Term
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Definition
| layer of dermis that pushes into the epidermis to form a unique pattern for each individuals fingertip |
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Term
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Definition
patterns formed naturally in the skin
surgical incision parallel to the lines reasults in less stress and tends to heal more quickly |
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Term
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Definition
| torn dermis resulting from a rapid increase in size |
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Term
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Definition
| the contraction of this muscle results in the hair stranding on end, pulling the skin, causing goose bumps |
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