Vestibular nerve

Vestibular nerve
Nerve: Vestibular nerve
Inner ear illustration showing semicircular canal, hair cells, ampulla, cupula, vestibular nerve, & fluid
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 nervus vestibularis
Gray's subject #203 906
From Vestibulocochlear nerve
MeSH Vestibular+Nerve

The vestibular nerve is one of the two branches of the Vestibulocochlear nerve (the cochlear nerve being the other). It goes to the semicircular canals via the vestibular ganglion. It receives positional information.

Axons of the vestibular nerve synapse in the vestibular nucleus on the lateral floor and wall of the fourth ventricle in the pons and medulla.

It arises from bipolar cells in the vestibular ganglion, ganglion of Scarpa, which is situated in the upper part of the outer end of the internal auditory meatus.



The peripheral fibers divide into three branches (some sources list two)[1]:

  • the superior branch passes through the foramina in the area vestibularis superior and ends in the utricle and in the ampullae of the superior and lateral semicircular ducts;
  • the fibers of the inferior branch traverse the foramina in the area vestibularis inferior and end in the saccule;
  • the posterior branch runs through the foramen singulare and supplies the ampulla of the posterior semicircular duct.

See also

Additional images


External links

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 As such, some of the information contained within it may be outdated.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 ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • vestibular nerve — n a branch of the auditory nerve that consists of bipolar neurons with cell bodies collected in the vestibular ganglion, with peripheral processes passing to the semicircular canals, utricle, and saccule, and with central processes passing to the …   Medical dictionary

  • vestibular nerve — noun : a branch of the auditory nerve that supplies the vestibule of the inner ear and the ampullae of the semicircular canals * * * Anat. the part of the auditory nerve in the inner ear that carries sensory information related to body… …   Useful english dictionary

  • vestibular nerve — Anat. the part of the auditory nerve in the inner ear that carries sensory information related to body equilibrium. [1870 75] * * * …   Universalium

  • vestibular nerve — the division of the vestibulocochlear nerve that carries impulses from the semicircular canals, utricle, and saccule of the inner ear to the brain, conveying information about the body s posture and movements in space and allowing coordination… …   The new mediacal dictionary

  • vestibular ganglion — n a sensory ganglion in the trunk of the vestibular nerve in the internal auditory canal that contains cell bodies supplying nerve fibers comprising the vestibular nerve …   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

  • 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 neuronitis — DiseaseDisorder infobox Name = Vestibular neuronitis ICD10 = ICD10|H|81|2|h|80 ICD9 = ICD9|386.12 Vestibular Neuronitis, also called Vestibular neuritis , can be a paroxysmal, single attack of vertigo, a series of attacks, or a persistent… …   Wikipedia

  • Vestibular evoked myogenic potential — The vestibular evoked myogenic potential or VsEP is a neurophysiological assessment technique used to determine the function of the otolithic organs (utricle and saccule) of the inner ear. It complements the information provided by caloric… …   Wikipedia

  • Vestibular neuronitis — Inflammation of the vestibular nerve, the nerve running to the vestibule. (The vestibule is in the inner ear. Like an internal carpenter’s level, it and the semicircular canals work with the brain to sense, maintain, and regain balance and… …   Medical dictionary

Share the article and excerpts

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