After an injury, a person can walk but fine control of the hand while writing is disturbed. Which brain part may be more affected?
Answer and explanation
Correct answer: Cerebellum
The cerebellum coordinates the timing, precision and smoothness of voluntary muscle movements, and it also contributes to posture and balance. Writing requires carefully graded movements of the fingers, wrist and hand, so disturbed fine control points toward cerebellar involvement even if walking remains possible. Option A is therefore best. The medulla controls vital involuntary functions, while an olfactory receptor and the pancreas do not coordinate hand movement.
Frequently asked questions
What is the correct answer to this question?
Cerebellum
Why is this the correct answer?
The cerebellum coordinates the timing, precision and smoothness of voluntary muscle movements, and it also contributes to posture and balance. Writing requires carefully graded movements of the fingers, wrist and hand, so disturbed fine control points toward cerebellar involvement even if walking remains possible. Option A is therefore best. The medulla controls vital involuntary functions, while an olfactory receptor and the pancreas do not coordinate hand movement.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Nervous system.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
