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Temperature and Fluid Regulation
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Health & Wellness
HW.129 Temperature and Fluid Regulation
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Which explanation best links skin blood flow, heart work, and rest in hot conditions?
A
When skin vessels widen to release heat, the heart helps move blood there; rest lowers muscle heat and reduces demand.
B
The heart stops helping with cooling once sweating begins.
C
Rest matters only for thirst and has no connection to body heat.
D
Skin vessels widen to store heat, and rest makes muscles produce more heat.
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