Lateral vestibular nucleus

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Lateral vestibular nucleus
Gray761.png
Terminal nuclei of the vestibular nerve, with their upper connections. (Schematic.)
  1. Cochlear nerve, with its two nuclei
  2. Accessory nucleus
  3. Tuberculum acusticum
  4. Vestibular nerve
  6. Nucleus of Deiters
  7. Nucleus of Bechterew
  8. Inferior or descending root of acoustic
  9. Ascending cerebellar fibers
  10. Fibers going to raphé
  11. Fibers taking an oblique course
  12. Lemniscus
  13. Inferior sensory root of trigeminal
  14. Cerebrospinal fasciculus
  15. Raphé
  16. Fourth ventricle
  17. Inferior peduncle. Origin of striæ medullares.
Details
Identifiers
Latinnucleus vestibularis lateralis
MeSHD003689
NeuroNames716
NeuroLex IDnlx_144002
TA98A14.1.05.427
TA25935
FMA54614
Anatomical terms of neuroanatomy

The lateral vestibular nucleus (Deiters's nucleus) is the continuation upward and lateralward of the , and in it terminate many of the ascending branches of the vestibular nerve.

Structure[]

It consists of very large multipolar cells whose axons form an important part of the posterior longitudinal bundle (aka medial longitudinal fasciculus) of the same and the opposite side.

The axons bifurcate as they enter the posterior longitudinal bundle,

  • the ascending branches send terminals and collaterals to the motor nuclei of the abducens, trochlear and oculomotor nerves via the ascending component of the medial longitudinal fasciculus, and are concerned in coördinating the movements of the eyes with alterations in the position of the head;
  • the descending branches pass down in the posterior longitudinal bundle into the anterior funiculus of the spinal cord as the vestibulospinal fasciculus () and are distributed to motor nuclei of the anterior column by terminals and collaterals.

Other fibers are said to pass directly to the vestibulospinal fasciculus without passing into the posterior longitudinal bundle.

The fibers which pass into the vestibulospinal fasciculus are intimately concerned with equilibratory reflexes.

Other axons from Deiters’s nucleus are supposed to cross and ascend in the opposite medial lemniscus to the ventro-lateral nuclei of the thalamus; still other fibers pass into the cerebellum with the inferior peduncle and are distributed to the cortex of the vermis and the roof nuclei of the cerebellum; according to Cajal they merely pass through the nucleus fastigii on their way to the cortex of the vermis and the hemisphere.

History[]

Eponym[]

Deiter's nucleus was named after German neuroanatomist Otto Friedrich Karl Deiters (1834–1863).

References[]

Public domain This article incorporates text in the public domain from page 860 of the 20th edition of Gray's Anatomy (1918)

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