NERVOUS SYSTEM SPECIAL SENSE
CEREBELLUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Paleocerebellum
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Archicerebellum
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Spinocerebellum
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Cerebrocerebellum
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None of the above
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Detailed explanation-1: -What causes nystagmus? Jerk nystagmus usually results from diseases affecting the inner ear balance mechanisms or the back part of the brain (brainstem or cerebellum).
Detailed explanation-2: -Downbeat spontaneous nystagmus is usually due to an impairment of the cerebellar flocculus (Zee et al., 1981). A typical feature of cerebellar downbeat nystagmus is an increase of drift velocity and hence nystagmus intensity with horizontal eccentric gaze.
Detailed explanation-3: -Although there are several areas of the brain that control eye movement, nystagmus is most often associated with damage to the cerebellum or brainstem. Damage to the inner ear can also lead to nystagmus.
Detailed explanation-4: -The two major types of nystagmus are jerk nystagmus and pendular nystagmus.