Which brain structure regulates heart rate, respirations, blood pressure, and reflexes such as coughing, sneezing, swallowing, and vomiting?

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

Answer: (A)

The medulla oblongata handles the body’s most basic life-sustaining functions. It houses the cardiac center that adjusts heart rate, the respiratory centers that generate and regulate breathing, and the vasomotor center that helps control blood pressure. It also contains the reflex centers for coughing, sneezing, swallowing, and vomiting, coordinating these protective actions. The cerebellum focuses on movement coordination and balance, not autonomic cranial reflexes. The pons contributes to breathing regulation but doesn’t control these reflex centers directly. The hypothalamus influences autonomic tone and endocrine functions at a higher level rather than serving as the direct reflex center. So, the medulla oblongata is the structure that best fits all the described functions.