Which mechanism constricts blood vessels to conserve body heat?

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Multiple Choice

Which mechanism constricts blood vessels to conserve body heat?

When the body needs to conserve heat, the small vessels near the skin surface tighten, narrowing the blood flow to the skin. This process, vasoconstriction, reduces heat loss from the body by limiting how much warm blood reaches the surface. In contrast, vasodilation would widen those vessels to release more heat. Excretion and absorption aren’t involved in regulating heat loss through blood flow.

When the body needs to conserve heat, the small vessels near the skin surface tighten, narrowing the blood flow to the skin. This process, vasoconstriction, reduces heat loss from the body by limiting how much warm blood reaches the surface. In contrast, vasodilation would widen those vessels to release more heat. Excretion and absorption aren’t involved in regulating heat loss through blood flow.

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