In the human brain, which structure regulates vital functions such as breathing and heart rate?

In the human brain, the medulla oblongata regulates vital functions such as breathing and heart rate.

The medulla oblongata is the lowest part of the brainstem, positioned between the pons and the spinal cord. It contains groups of nerve cells that help control involuntary processes, including breathing, blood pressure, heart rate, swallowing, coughing, sneezing, and vomiting.

Its importance comes from its connection with both the brain and spinal cord. Signals traveling between the cerebral brain and the body often pass through this region. Many motor nerve fibers also cross here in a process called decussation, helping explain why each side of the brain generally controls the opposite side of the body.

The medulla is sometimes confused with the hypothalamus, which helps regulate temperature, hunger, hormones, and other homeostatic functions. The cerebellum mainly coordinates movement and balance, while the medulla is especially associated with automatic life-sustaining functions.