JAMB 2020 Biology · Question 24
The process of walking is under the control of the part of the brain called
Options
- A.optic lobe
- B.olfactory lobe
- C.cerebellum
- D.medulla oblongata
Answer: C. cerebellum
Explanation written with AI and checked against the answer key
1. Analyze the question The question asks which part of the brain controls walking. Walking needs coordination of muscles, balance, and posture.
2. Explain the concept Each part of the brain has its own job:
- Optic lobe: processes information from the eyes (vision).
- Olfactory lobe: processes the sense of smell.
- Cerebellum: coordinates voluntary muscle movement, maintains balance, posture, and equilibrium.
- Medulla oblongata: controls involuntary actions such as heartbeat, breathing, and peristalsis, plus reflexes like coughing, sneezing, and vomiting.
3. Step-by-step solution
- Walking is a voluntary action. The cerebrum starts the decision to walk.
- Smooth, balanced, coordinated walking is controlled by the cerebellum. It makes sure the muscles work together and that you don't fall over.
- Eliminate A (vision only) and B (smell only).
- Eliminate D, because the medulla oblongata handles involuntary activities, not walking.
4. Answer
Correct option: C. cerebellum
5. Exam tip Remember: Cerebellum = Coordination and Balance (both start with "C" and "B" is in "balance"). Also remember Medulla = Maintains life functions (breathing, heartbeat). Drunk people stagger because alcohol affects the cerebellum, so you can picture this in your head whenever you see the question.
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