Peduncles
ICP
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The Peduncles |
We already know quite a bit about the cerebellum from our spinal cord and brain stem discussions. Let's review our CURRENT STATE of knowledge!!
CEREBELLAR PEDUNCLES (bundles of fibers connecting the cerebellum with the underlying brain stem).
We know that the inferior cerebellar peduncle (restiform body) contains the dorsal spinocerebellar tract (DSCT) fibers. These fibers arise from cells in the ipsilateral Clarke's column in the spinal cord (C8-L3). We also know that this peduncle contains the cuneocerebellar tract (CCT) fibers. These fibers arise from the ipsilateral accessory cuneate nucleus. The largest component of the inferior cerebellar peduncle consists of the olivocerebellar tract (OCT) fibers. These fibers arise from the contralateral inferior olive. Finally, some of you might remember from Point 13 that vestibulocerebellar tract (VCT) fibers arise from cells in both the vestibular ganglion and the vestibular nuclei and pass in the inferior cerebellar peduncle to reach the cerebellum.
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