During Thermoregulation, How Does an Endotherm Respond to a High

Question

During thermoregulation, how does an endotherm respond to a high body temperature?
A) Blood vessels near the skin dilate.
B) Blood vessels near the skin constrict.
C) The brain shuts down to prevent damage.
D) Blood glucose levels increase to stimulate metabolism.

Accepted Answer

Endotherms regulate their body temperature through various physiological mechanisms. When experiencing high body temperatures, blood vessels near the skin dilate (vasodilation) to increase blood flow to the skin's surface, facilitating heat loss through radiation, convection, and evaporation.