(A) Name the part of brain which is responsible for the following actions :
(i) Maintaining posture and balance
(ii) Beating of heart
(iii) Thinking
(iv) Blood pressure
Generated by claude-sonnet-4-6 · 2026-06-15 06:49 · grounding rag
Model Answer
(i) Cerebellum (part of hind-brain) — maintains posture and balance of the body.
(ii) Medulla (part of hind-brain) — controls involuntary actions like beating of heart.
(iii) Fore-brain — it is the main thinking part of the brain.
(iv) Medulla (part of hind-brain) — controls blood pressure.
Source: Control and Coordination, Section 6.1.2 Human Brain
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Explanation
- The question tests knowledge of the three main brain regions and their specific functions.
- Cerebellum → posture/balance/precision of voluntary actions.
- Medulla (hind-brain) → all involuntary actions: heartbeat, blood pressure, salivation, vomiting.
- Fore-brain → thinking, sensory interpretation, voluntary muscle control.
- Note: Both (ii) and (iv) have the same answer — Medulla; don't be confused. Examiners expect this.