Which structure connects to the spinal cord and regulates automatic functions such as breathing?

• A. Cerebellum
• B. Cerebrum
• C. Brain stem
• D. Limbic system

Answer: (C)

The brain stem connects to the spinal cord and houses the neural centers that keep basic bodily functions running automatically. Breathing is controlled by centers in the medulla oblongata and pons within the brain stem, allowing automatic regulation without conscious effort. The cerebellum coordinates movement and balance, not breathing. The cerebrum handles thinking, perception, and voluntary actions. The limbic system governs emotions and memory and can influence breathing, but it isn’t the primary autonomic regulator. So, the structure that connects to the spinal cord and regulates automatic functions like breathing is the brain stem.