Which region of the brain regulates appetite and body temperature?

• A. Cerebellum
• B. Medulla oblongata
• C. Pons
• D. Hypothalamus

Answer: (D)

Appetite and body temperature are coordinated by the hypothalamus, a key brain region that acts as the body’s thermostat and energy regulator. It receives signals about energy status from the gut and fat tissue—hormones like leptin, ghrelin, and insulin, as well as nutrient levels—and uses this information to drive hunger or fullness through its neuronal networks. Within the hypothalamus, different nuclei help balance feeding: some areas promote eating when energy is low, while others promote satiety to prevent overconsumption, maintaining stable energy stores.

For temperature control, the preoptic area of the hypothalamus sets the body’s thermal set point and activates responses to reach or maintain that temperature, such as sweating and vasodilation to cool down, or shivering and vasoconstriction to heat up.

Other brain regions handle different roles—like the cerebellum for coordination, the medulla for vital autonomic functions, and the pons for certain reflexes and sleep—but the hypothalamus is the central hub for regulating both appetite and body temperature.