Which process involves widening of blood vessels to increase heat loss?

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Multiple Choice

Which process involves widening of blood vessels to increase heat loss?

Vasodilation is the widening of blood vessels, especially near the skin. When the vessels expand, more warm blood can flow to the surface, bringing heat closer to where it can be lost to the surroundings. This increases heat loss and helps cool the body. In contrast, shivering generates heat through muscle activity; excretion is about removing wastes and isn’t a mechanism for cooling; protection isn’t a process that regulates heat loss. So the widening of blood vessels to increase heat loss is vasodilation.

Vasodilation is the widening of blood vessels, especially near the skin. When the vessels expand, more warm blood can flow to the surface, bringing heat closer to where it can be lost to the surroundings. This increases heat loss and helps cool the body. In contrast, shivering generates heat through muscle activity; excretion is about removing wastes and isn’t a mechanism for cooling; protection isn’t a process that regulates heat loss. So the widening of blood vessels to increase heat loss is vasodilation.

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