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Inferior Cerebellar Peduncle (Posterior; Right)
Nervous System

Inferior Cerebellar Peduncle (Posterior; Right)

Pedunculus cerebellaris inferior

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Quick Facts

The inferior cerebellar peduncle (aka caudal cerebellar peduncle) is a thick, large bundle of nerve fibres that emerge from the posterolateral surface of the upper medulla. It extends under the lateral recesses of the rhomboid fossa and curves superiorly into the cerebellum, caudomedial to the middle cerebellar peduncle.

The fibres originate from spinal neurons and medullary relay nuclei. Each peduncle connects the spinal cord and medulla oblongata with the cerebellum and comprises the small, medial juxtarestiform body and large, lateral restiform body.

The peduncles carry many types of input and output fibers which integrate proprioceptive sensory input with motor vestibular functions such as balance and postural maintenance.

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Inferior Cerebellar Peduncle

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The inferior cerebellar peduncle (made of restiform and juxtarestiform bodies) is at the lower part of the fourth ventricle and connects the cerebellum to the spinal cord and medulla oblongata.

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