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The Cerebellum

The medial portions receive information from the axial portion of the body and influence the motor activities of the trunk and girdle muscles by relaying information to the cerebral motor cortex

The Cerebellum

The intermediate parts of each hemisphere are more concerned with the distal parts of the limbs and skilled movements

The Cerebellum

The lateral parts of each hemisphere receive inputs from the association areas of the cerebral cortex and appear to play a role in planning rather than executing movements

The Cerebellum

The small flocculonodular lobes receive inputs from the equilibrium apparatus of the inner ears, are concerned with maintaining balance and controlling certain eye movements

The Cerebellum

Three pairs of fiber tracts, cerebellur peduncles connect the the cerebellum to the brain stem

The Cerebellum

Virtually all fibers entering and leaving the cerebellum are ipsilateral; from and to the same side of the body

The Cerebellum

The superior cerebellar peduncles connect the cerebellum and the midbrain. Fibers in these peduncles originate in the deep cerebellar nuclei and communicate with the cerebral motor cortex via thalamic relays

The Cerebellum

The middle cerebellar peduncles connect the pons the cerebellum.

The Cerebellum

These fibers allow one­way communication from the pons to the cerebellar neurons, which enables the cerebellum to be advised of coluntary motor activities initiated by the motor cortex

The Cerebellum

The inferior cerebellar peduncles connect the cerebellum and the medulla

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