Which brain region contains the cerebellum, pons, and medulla and regulates autonomic functions like respiration and heart rate?

• A. Forebrain
• B. Hindbrain
• C. Midbrain
• D. Cerebellum

Answer: (B)

Think of the brain in three major divisions: forebrain, midbrain, and hindbrain. The hindbrain includes the cerebellum, pons, and medulla, forming the brainstem that sits at the base of the brain. Autonomic control for vital functions like breathing and heart rate is centered mainly in the medulla, with the pons also contributing to respiratory rhythm. Since all three structures—the cerebellum, pons, and medulla—are located in the hindbrain, this region best fits the description. The other regions don’t contain all three structures, and the cerebellum by itself isn’t the whole region involved in these autonomic mechanisms.