Thermoregulatory Responses: Insulation, Vasodilation, Vasoconstriction, Behavior
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State
An animal regulates heat exchange, per Bio 2757, through insulation, vasodilation and vasoconstriction shifting blood toward or away from the skin, and behavior like basking or seeking shade.
Show
Vasodilation moves blood toward the skin for evaporative cooling; vasoconstriction moves it toward the core to conserve heat.
Watch for
Shivering and countercurrent heat exchange are active regulatory mechanisms, not passive side effects of activity.