Biology Nervous Coordination UHS 2022
PMDC Verified Question 63 of 86
The part of brain which guides smooth and accurate motions and maintains body position is:
A
Cerebrum
B
Cerebellum
C
Pons
D
Medulla
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Cerebellum
Concept:

Motor commands originate in the cerebrum, but they must be refined and coordinated for fluid movement.

Solution:

  • The cerebellum (the "little brain" at the back of the skull) acts as a high-speed computer that calculates and refines muscular contractions, ensuring motions are smooth, accurate, and that posture and balance are seamlessly maintained.


Why other options are incorrect:

  • Cerebrum: Initiates voluntary movement but does not do the fine-tuning for balance.


  • Medulla / Pons: Control vital autonomic functions like heart rate and breathing rhythms.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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