Juxtarestiform body
Subdivision of the Inferior Cerebellar Penduncle
Juxtarestiform body | |
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Scheme showing the connections of the several parts of the brain. (Inferior peduncle labeled at bottom right.) | |
Section of the medulla oblongata at about the middle of the olive. (Inferior peduncle labeled at upper right. | |
Details | |
Identifiers | |
Latin | Corpus juxtarestiforme |
NeuroNames | 779 |
NeuroLex ID | birnlex_1101 |
TA98 | A14.1.04.119 A14.1.07.415 |
TA2 | 5854 |
FMA | 72613 |
Anatomical terms of neuroanatomy [edit on Wikidata] |
The juxtarestiform body is the smaller, medial subdivision of each inferior cerebellar peduncle (the other, lateral one being the restiform body).[1]: 290
The juxtarestiform body contains mostly cerebellar afferents, but also some cerebellar efferents.[1]: 290
Anatomy
Afferents
- Vestibulocerebellar fibers: include second-order fibers from the vestibular nuclei (project bilaterally) as well as a few first-order fibers from the vestibular ganglion/nerve (project ipsilaterally).[1]: 293 The fibers project to the vestibulocerebellum and cerebellar vermis (of the spinocerebellum)[1]: 290 as well as to (ipsilateral and contralateral) fastigial and dentate nuclei.[1]: 402
Efferents
- Cerebellovestibular fibers:[1]: 290-291 arise from Purkinje cells of the flocculonodular lobe of the cerebellum.[1]: 297
- Fastigiovestibular fibers: mainly project to both ipsilateral and contralateral lateral and inferior vestibular nuclei to influence both vestibulospinal tracts.[1]: 292
- Fastigiobulbar fibers: project bilaterally to the (medullary and pontine) reticular formation to influence both reticulospinal tracts (but mostly the contralateral one).[1]: 292
- Cerebelloreticular fibers[1]: 290-291
Function
The juxtarestiform body coordinates balance and eye movements by communication between the vestibular apparatus and the cerebellum.[citation needed]
Additional images
- Cerebellum:—Inferior surface showing inferior cerebellar peduncle
- Upper part of medulla spinalis and hind- and mid-brains; posterior aspect, exposed in situ.
References
- ^ a b c d e f g h i j Patestas, Maria A.; Gartner, Leslie P. (2016). A Textbook of Neuroanatomy (2nd ed.). Hoboken, New Jersey: Wiley-Blackwell. ISBN 978-1-118-67746-9.
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Anatomy of the cerebellum
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Medial/lateral |
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Deep cerebellar nuclei | |
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Cerebellar cortex |
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Internal |
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Peduncles |
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