, heat production (normal)
kr kr 1. basal metabolism
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2. muscular activity (shivering)
kr kr kr
3. thyroxine and epinepherine (stimulates metabolism)
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4. fever
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heat transfer (normal) 1. radiation
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2. conduction
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3. convection
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4. evaporation (vaporization)
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core temperature is controlled by ... the hypothalamus
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processes to regulate temperature
kr kr kr 1. shivering
kr
2. sweating
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3. vasoconstriction
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4. vasodilation
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genetic and lifespan considerations (newborns) thermoregulation 1. decreased sub q fat
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2. blood vessels closer to surface
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3. brown adipose fat - nonshivering thermogenesis
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4. preemies have even less sub q and brown fat
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genetic and lifespan considerations (children) thermoregulation
kr kr kr kr kr
handle high temperatures well if healthy kr kr kr kr kr
genetic and lifespan considerations (elderly) thermoregulation
kr kr kr kr kr 1. decreased sub q fat
kr kr kr kr
2. less active
kr kr
3. sensitive to extremes in environment temp
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4. thermoregulation is not as efficient
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hypothermia 1. excessive heat loss kr kr kr
2. inadequate heat production
kr kr kr
3. impaired hypothalamic thermoregulation
kr kr kr