Lateral vestibular nucleus

Lateral vestibular nucleus
Brain: 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.
5. Internal nucleus.
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.
Latin nucleus vestibularis lateralis
Gray's subject #191 860
NeuroNames hier-712

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

Anatomy

It consists of very large multipolar cells whose axons form an important part of the posterior longitudinal bundle 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 (anterior marginal bundle) 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.

Eponym

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

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • lateral vestibular nucleus — n the one of the four vestibular nuclei on each side of the medulla oblongata that is situated on the inner side of the inferior cerebellar peduncle beneath the floor of the fourth ventricle and that sends fibers down the same side of the spinal… …   Medical dictionary

  • vestibular nucleus — n any of four nuclei in the medulla oblongata on each side of the floor of the fourth ventricle of the brain in which fibers of the vestibular nerve terminate see INFERIOR VESTIBULAR NUCLEUS, LATERAL VESTIBULAR NUCLEUS, MEDIAL VESTIBULAR NUCLEUS …   Medical dictionary

  • Lateral geniculate nucleus — Brain: Lateral geniculate nucleus Hind and mid brains; postero lateral view. (Lateral geniculate body visible near top.) Latin Corpus geniculatum laterale Part of Thalamus System …   Wikipedia

  • Medial vestibular nucleus — Brain: Medial vestibular nucleus A cross section of the lower pons showing the medial vestibular nucleus (#3) labeled at the top left …   Wikipedia

  • superior vestibular nucleus — n the one of the four vestibular nuclei on each side of the medulla oblongata that is situated dorsal to the lateral vestibular nucleus at the junction of the floor and lateral wall of the fourth ventricle and that sends ascending fibers to the… …   Medical dictionary

  • Superior vestibular nucleus — Brain: Superior vestibular nucleus Terminal nuclei of the vestibular nerve, with their upper connections. (#7 is Nucleus of Bechterew.) Latin nucleus vestibularis superior Gray s …   Wikipedia

  • Lateral nucleus — can refer to: * Lateral hypothalamus * Lateral vestibular nucleus …   Wikipedia

  • Vestibular nuclei — Brain: Vestibular nuclei Dissection of brain stem. Dorsal view. (Caption for Vestibular nucleus is visible at left.) Latin nuclei vestibulares Gray s …   Wikipedia

  • Vestibular nerve — Nerve: Vestibular nerve Inner ear illustration showing semicircular canal, hair cells, ampulla, cupula, vestibular nerve, fluid …   Wikipedia

  • nucleus vestibularis lateralis — [TA] lateral vestibular nucleus: a vestibular nucleus composed of large multipolar nerve cells that lies immediately superior to the inferior vestibular nucleus; its upper end becomes continuous with the superior vestibular nucleus. Called also… …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”