10) Skin [1]

10) Skin [1] - Last lecture-circulatory system Blood...

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Blood vessels -tunica intima -tunica media -tunica adventitia Last lecture-circulatory system
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Integument Skin and all derivatives -sweat glands and ducts -hair -nails Skin is continuous with digestive respiratory, and urinary systems Skin is the largest organ -16% of total body weight Integument-introduction
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Integument functions -protective barrier -physical -chemical -biological -moisture (desiccation) -thermoregulation -evaporative cooling -heat radiation -insulation -excretion -salts, urea -metabolism -vitamin D3 -sense perception -touch Integument-skin
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Skin structure -3 layers - epidermis -epithelium -no blood vessels - dermis -connective tissue -blood vessels -sweat gland ducts -hair -sensory receptors -hypodermis -adipose tissue -connective tissue -sweat glands Integument-skin
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Epidermis -keratinized stratified squamous epithelium -sequential differentiation of keratinocytes (skin cells) -other cell types -melanocyte (epithelial) -langerhans cell (connective tissue) -merkel cell (epithelial, neural) Integument-epidermis
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Epidermis
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10) Skin [1] - Last lecture-circulatory system Blood...

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