vestibulocochlear nerve


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vestibulocochlear

 [ves-tib″u-lo-kok´le-er]
pertaining to the vestibule of the ear and the cochlea.
vestibulocochlear nerve the eighth cranial nerve, which emerges from the brain between the pons and medulla oblongata, behind the facial nerve. The vestibular division serves the vestibule of the ear and the semicircular canals, carrying impulses for the sense of equilibrium. The cochlear division serves the cochlea and carries impulses for the sense of hearing. Called also acoustic nerve and auditory nerve. See Appendix 2-6.

vestibulocochlear nerve

(vĕ-stĭb′yə-lō-kŏk′lē-ər, -kō′klē-)
n.
Either of the eighth pair of cranial nerves, each of which divides to form the cochlear nerve and the vestibular nerve. Also called acoustic nerve, auditory nerve.

auditory nerve

The cranial nerve which connects the inner ear to the brainstem, which contains sensory fibres for sound and vestibular fibres for balance.

Vestibulocochlear nerve (Eighth cranial nerve)

Nerve that transmits information, about hearing and balance from the ear to the brain.
Mentioned in: Acoustic Neuroma
References in periodicals archive ?
Becker, "Congenital malformations of the inner ear and the vestibulocochlear nerve in children with sensorineural hearing loss: evaluation with CT and MRI," Journal of Computer Assisted Tomography, vol.
Govaerts et al., "Aplasia and hypoplasia of the vestibulocochlear nerve: diagnosis with MR imaging," Radiology, vol.
The HRCT scan reveals many types of bony inner ear malformations and MRI scan provides better visualization of the membranous labyrinth and the status of vestibulocochlear nerves. In such cases the most common CT scan abnormality is a dilated vestibular aqueduct (LVA) defined as measuring greater than 1.5 mm in diameter.
Status of Vestibulocochlear Nerves. In all cases where IAC was malformed, vestibulocochlear nerves were also malformed except for 1 case where IAC was dilated but nerves were visualized.
In 23 of 313 (7.3%) vestibulocochlear nerves anomalies were present.
This study showed that HRCT scan and MRI scan revealed similar morphologic findings of malformed inner ears, except for vestibulocochlear nerves which were more appreciated on MRI scan.
One of the most important findings of our study is that MRI scan allows full appreciation of the normal anatomy and anomalies of the vestibulocochlear nerves within the internal auditory canal in children with congenital sensorineural deafness.
11 inner ears were found to have bilateral ill-defined but visualized vestibulocochlear nerves and 12 inner ears had absent nerves.
In the first published case of transection of the facial and vestibulocochlear nerve complex in the internal acoustic canal, it was reported that the facial and vestibulocochlear nerves were avulsed in the internal acoustic canal [5].
In conclusion, traumatic facial and vestibulocochlear nerve injuries can occur in the absence of a temporal bone fracture.
Facial and vestibulocochlear nerve avulsion at the fundus of the internal auditory canal in a child without a temporal bone fracture.
Traumatic Facial and Vestibulocochlear Nerve Injury in The Internal Acoustic Canal in The Absence of A Temporal Bone Fracture.