Hypothalamus regulates body temperature

Steps:

• Identify the brain region responsible for thermoregulation.
• Recall that blood temperature changes are detected by specialized neurons.
• Link this to the hypothalamus as the control center for homeostasis.
• Confirm no other brain part primarily handles blood temperature sensing.

Why A is correct:

• The hypothalamus contains thermoreceptors that monitor blood temperature and trigger responses like sweating or shivering, per homeostatic regulation principles.

Why the others are wrong:

• B: Cerebrum handles higher cognition, not temperature sensing.
• C: Cerebellum coordinates movement, unrelated to blood temperature.
• D: Medulla oblongata controls vital functions like breathing, not thermoregulation.

Final answer: A