PATHOLOGY MCQ
NERVOUS SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cerebellum
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Cerebrum
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Medulla
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None of the above
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Detailed explanation-1: -The cerebellum is located at the back of the brain beneath the occipital lobes. It is separated from the cerebrum by the tentorium (fold of dura). The cerebellum fine tunes motor activity or movement, e.g. the fine movements of fingers as they perform surgery or paint a picture.
Detailed explanation-2: -The cerebellum is located behind the brain stem. While the frontal lobe controls movement, the cerebellum “fine-tunes” this movement. This area of the brain is responsible for fine motor movement, balance, and the brain’s ability to determine limb position.
Detailed explanation-3: -The cerebellum is important for making postural adjustments in order to maintain balance. Through its input from vestibular receptors and proprioceptors, it modulates commands to motor neurons to compensate for shifts in body position or changes in load upon muscles.
Detailed explanation-4: -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.