Multiple choice

The most vital part ofthe brain is

  1. cerebrum

  2. cerebellum

  3. thalamus

  4. medulla oblongata
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D Correct answer
Explanation

The medulla oblongata is the most vital part of the brain because it contains centres controlling essential autonomic functions: respiratory centre (breathing), cardiovascular centre (heart rate, blood pressure), vomiting centre, and reflex centres like coughing, sneezing, and swallowing. Damage to the medulla is incompatible with life. The cerebrum (conscious thought, voluntary movement) and cerebellum (coordination, balance) are important but not immediately vital. The thalamus is a sensory relay station, not a vital centre.

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