Which bodily change helps dissipate heat by increasing blood flow to the skin?

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Multiple Choice

Which bodily change helps dissipate heat by increasing blood flow to the skin?

When the body needs to shed heat, skin blood vessels widen, increasing blood flow to the surface. This brings more warm blood from the core to the skin, making heat transfer to the environment more effective through radiation, convection, and evaporation (especially if sweating occurs). This process is vasodilation of cutaneous vessels. Vasoconstriction would do the opposite by narrowing those vessels to conserve heat. Shivering generates heat through muscle activity rather than dissipating it. Piloerection (goosebumps) helps trap a layer of air for insulation, also reducing heat loss rather than promoting it.

When the body needs to shed heat, skin blood vessels widen, increasing blood flow to the surface. This brings more warm blood from the core to the skin, making heat transfer to the environment more effective through radiation, convection, and evaporation (especially if sweating occurs). This process is vasodilation of cutaneous vessels.

Vasoconstriction would do the opposite by narrowing those vessels to conserve heat. Shivering generates heat through muscle activity rather than dissipating it. Piloerection (goosebumps) helps trap a layer of air for insulation, also reducing heat loss rather than promoting it.

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