When body temperature is too high, which of the following occurs?
A) Hypothalamus ceases to function.
B) Blood vessels in the skin dilate.
C) Capillaries contract.
D) Skeletal muscles contract.

Question

Quizplus · Accepted Answer

When body temperature is too high, blood vessels in the skin dilate (expand). This allows more blood to flow near the surface of the skin, where it can release heat to the environment through radiation and convection. This helps to cool the body down. The hypothalamus actually plays a crucial role in regulating body temperature, so it does not cease to function. Capillaries do not contract in response to high body temperature, and skeletal muscles may or may not contract depending on the specific circumstances.

When Body Temperature Is Too High, Which of the Following