Juxtarestiform body

Subdivision of the Inferior Cerebellar Penduncle

Juxtarestiform body
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 cerebellar cortex.^[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.

Anatomy of the cerebellum

Surface

Lobes	Anterior lobe Posterior lobe Horizontal fissure Flocculonodular lobe Flocculus Nodule Primary fissure
Medial/lateral	Vermis: anterior Central lobule Culmen Lingula posterior Folium Tuber Uvula Vallecula of cerebellum Hemisphere: anterior Alar central lobule posterior Biventer lobule Cerebellar tonsil

Grey matter

Deep cerebellar nuclei	Dentate interposed Emboliform Globose Fastigial
Cerebellar cortex	Molecular layer Stellate cell Basket cell Purkinje cell layer Purkinje cell Bergmann glia cell = Golgi epithelial cell Fañanas cell Granule cell layer Golgi cell Granule cell Unipolar brush cell Fibers: Mossy fibers Climbing fiber Parallel fiber

White matter

Internal	Arbor vitae
Peduncles	Inferior (medulla): Dorsal spinocerebellar tract Olivocerebellar tract Cuneocerebellar tract Juxtarestiform body (Vestibulocerebellar tract) Trigeminocerebellar fibers Middle (pons): Pontocerebellar fibers Superior (midbrain): Ventral spinocerebellar tract Dentatothalamic tract

Anatomy of the medulla

Grey matter

Cranial nuclei

afferent:	Solitary nucleus tract Dorsal respiratory group Gustatory nucleus Vestibular nuclei Lateral Medial Inferior
efferent:	Hypoglossal nucleus Nucleus ambiguus Dorsal nucleus of vagus nerve Inferior salivatory nucleus

Dorsal

Ventral

- Ventral respiratory group
- Arcuate nucleus of medulla
- Rostral ventromedial medulla
- Botzinger complex
- Pre-Bötzinger complex

White matter

Dorsal	Sensory Sensory decussation Medial lemniscus Juxtarestiform body Ascending dorsal longitudinal fasciculus Medial longitudinal fasciculus Motor Descending dorsal longitudinal fasciculus Medial longitudinal fasciculus
Ventral	Descending tracts Olivocerebellar tract Rubro-olivary tract

Surface

Front	Pyramid Anterior median fissure Anterolateral sulcus Olive Inferior olivary nucleus
Back	Posterior median sulcus Posterolateral sulcus Area postrema Vagal trigone Hypoglossal trigone Medial eminence Inferior cerebellar peduncle

Grey

Authority control databases	Terminologia Anatomica 2

^ ^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.