What is the function of the medulla oblongata?

• A. Processes visual information
• B. Regulates appetite
• C. Helps control BP and respiration
• D. Controls fine motor skills in hands

Answer: (C)

The medulla oblongata contains the body's autonomic control centers that keep two life-sustaining systems running. It houses the respiratory centers that set the basic breathing rhythm and adjust rate and depth in response to carbon dioxide, oxygen, and other signals. It also houses the cardiovascular or vasomotor center, which modulates heart rate, the strength of heart contractions, and the tone of blood vessels to help maintain stable blood pressure. In addition, it coordinates reflexes like swallowing and vomiting via cranial nerves. These functions are why the medulla is central to regulating BP and respiration. It does not process visual information (that happens in the visual pathways of the brain), regulate appetite (that involves the hypothalamus), or control fine motor skills in the hands (that relies more on the motor cortex and cerebellum).