Facilitatory signals arrive through the ventral reticulospinal tract from Brodmann area 4, the neocerebellum and the vestibular nucleus.
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Another pathway ( not in picture ) directly projects from the vestibular nucleus through the ascending tract of Dieters to the ipsilateral medial rectus motoneuron.
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Axons of the vestibular nerve synapse in the vestibular nucleus are found on the lateral floor and wall of the fourth ventricle in the pons and medulla.
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:The medial vestibulospinal tract projects bilaterally from the medial vestibular nucleus within the medial longitudinal fasciculus to the ventral horns in the upper cervical cord ( C6 vertebra ).
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Lateral vestibulo-spinal tract ( lateral vestibular nucleus Deiters )-via ventrolateral medulla and spinal cord to ventral funiculus ( lumbo-sacral segments ) . . . Ipsilaterally for posture
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Fibres from the lateral vestibular nucleus also pass via the vestibulospinal tract, to anterior horn cells at many levels in the spinal cord, in order to co-ordinate head and trunk movements.
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In 1863 a German anatomist Otto Friedrich Karl Deiters described the existence of an unbranched tubular process ( the axon ) extending from some cells in the central nervous system, specifically from the lateral vestibular nucleus.
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His name is lent to the " nucleus of Deiters ", also called the lateral vestibular nucleus, and to " Deiters'cells ", structures that are associated with outer hair cells in the cochlea of the inner ear.
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His name is lent to several other anatomical structures, including " Schwalbe's nucleus " or the vestibular nucleus; " Schwalbe's ring ", which is a circular ridge consisting of collagenous fibers surrounding the outer margin of Descemet's membrane; and " Schwalbe's line ", an anatomical line located on the posterior surface of the eye's cornea.
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