Final answer:
The body's temperature regulation mechanism depends on the nervous system. The hypothalamus plays a key role in maintaining the body's temperature through thermoregulation.
Step-by-step explanation:
The body's temperature regulation mechanism depends on the nervous system. The hypothalamus, which is part of the brain, plays a key role in maintaining the body's temperature through a process called thermoregulation. It receives data from temperature sensors and stimulates responses to either increase or decrease body heat. These responses include vasodilation or vasoconstriction of blood vessels, sweating, and shivering.