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The posterior-most part of the brain that contains the cardiac, respiratory and vasomotor centres controlling heartbeat, breathing and blood vessels is called what?
ACerebral cortex
BThalamus
CMedulla oblongata
DDiencephalon
Answer & Solution
Correct answer: C. Medulla oblongata
1. The structure houses cardiac, respiratory and vasomotor centres.
2. The cerebral cortex handles thinking and voluntary control, ruling out option A.
3. The thalamus relays signals and the diencephalon is the thalamus-hypothalamus region, ruling out options B and D.
4. The centre for heartbeat and breathing is the medulla oblongata, option C.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 15 Nervous System "Medulla Oblongata", p.230_
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