Integument2087

Integument2087 - Integument Explain the function and...

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Integument Explain the function and position of the cells and tissues within the integument Explain how the integument functions in: the regulation of body temperature, immunity, vitamin synthesis, sensation and excretion. Describe the development of the accessory structures and list their functions.
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Skin Integument = Skin + accessory structures Functions: Body Temp, protection, sensation, excretion, immunity, Vitamin D synthesis. Layers: Epidermis Dermis Subcutaneous
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Epidermis Cells: Keratinocytes, melanocytes, Langerhans, Merkel Stratum basale Stratum spinosum Stratum granulosum Stratum lucidum Stratum corneum
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Epidermal Cells Keratinocytes 90% of epidermal cells 4-5 layers Produce keratin Protect skin Waterproof skin
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Epidermal Cells Melanocytes - produce melanin Transfer pigment to keratinocytes 8% of epidermal cells
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Epidermal Cells Langerhans Cells- immune response Merkel cells – sensory Include tactile disc and neuron = touch sensation
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Integument2087 - Integument Explain the function and...

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