Question

The regulating centre for swallowing and vomiting is the

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

Hint:

Remember that this part of the brainstem also controls heartbeat and breathing, both automatic reflexes.

Answer 1

The Correct Option is C

Step 1: Understanding the Question.
The question asks which part of the brain controls the reflex actions of swallowing and vomiting.

Step 2: Key Concept.
The medulla oblongata is the lowest part of the brainstem, connecting the brain to the spinal cord. It houses the centres for many automatic, involuntary body functions, including heartbeat, breathing, swallowing, and vomiting.

Step 3: Detailed Explanation.
The cerebellum sits at the back of the brain and its main job is to coordinate balance, posture and smooth muscle movement. It does not run the swallowing or vomiting reflex.
The cerebrum is the large, folded upper part of the brain responsible for voluntary movement, sensory processing, memory and thinking. Swallowing and vomiting are automatic reflexes, not consciously directed by the cerebrum.
The pons lies above the medulla and helps relay signals between the cerebrum and the cerebellum, and it also helps regulate the rate of breathing along with the medulla. It is not the main centre for swallowing or vomiting.
The medulla oblongata contains dedicated centres, including the swallowing centre and the vomiting centre, that trigger and coordinate these reflex actions automatically when needed.

Step 4: Final Answer.
The regulating centre for swallowing and vomiting is the medulla oblongata.