MRCP UK EXAMINATIONS

NEUROLOGY

CEREBELLAR SYNDROME

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The cerebellum functions as a comparator. This means that the cerebellum compares
A
intended movements with actual movements.
B
spinal cord activity with the activity of the cerebrum.
C
the incoming sensory stimuli with the outgoing sensory stimuli.
D
the right cerebellar hemisphere with the left cerebellar hemisphere.
Explanation: 

Detailed explanation-1: -The cerebellum compares the intended movement originating from the motor cortex areas with the actual movement relayed back by the afferent systems and interneurons in the spinal cord.

Detailed explanation-2: -The cerebellum constantly compares the intended movement with the actual movement and makes appropriate adjustments.

Detailed explanation-3: -The primary function of the cerebellum is evidently to detect the difference, or “motor error, ‘’ between an intended movement and the actual movement, and, through its projections to the upper motor neurons, to reduce the error.

Detailed explanation-4: -Maintaining balance: The cerebellum has special sensors that detect shifts in balance and movement. It sends signals for the body to adjust and move. Coordinating movement: Most body movements require the coordination of multiple muscle groups. The cerebellum times muscle actions so that the body can move smoothly.

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