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THERMOREGULATION (THERMOREGULATION (ANIMALS) (SUBCUTANEOUS FAT (Heat…
THERMOREGULATION
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THERMOREGULATION (HUMAN)
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SKIN
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Blood vessels near the skin constrict to reduce heat loss when the body temp is dropping (VASOCONSTRICTION)
In cold environment, pili muscle in the skin contract which cause skin hairs to stand in order to trap external warm air
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Thermoneutral range
- Constant metabolic heat production
Ectoderm vs. Endoderm
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Endoderm
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- Maintain constant body temperature
Ectotherm
- Non optimal enzymes activity
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- Gain heat from surrounding
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