vestibulocochlear nerve

ves·tib·u·lo·coch·le·ar nerve

V0077150 (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.

vestibulocochlear nerve

(vɛˌstɪbjʊːlə ˈkɒklɪə) n (Anatomy) either one of the eight pairs of cranial nerves that supply the cochlea and semicircular canals of the internal ear and contribute to the sense of hearing. Formerly called: acoustic nerve

Thesaurus

Noun

vestibulocochlear nerve - a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochleaacoustic nerve, auditory nerve, eighth cranial nerve, nervus vestibulocochlearisauditory system - the sensory system for hearingcranial nerve - any of the 12 paired nerves that originate in the brain stem

Vestibulocochlear Nerve

vestibulocochlear nerve

[və¦stib·yə·lə′käk·lē·ər ‚nərv] (neuroscience) auditory nerve

Vestibulocochlear Nerve

in man, the eighth pair of cranial nerves.

The nerve copsists of two functional parts— the vestibular, which is the conductor of the impulses from the organ of equilibrium, and the cochlear, which perceives auditory stimuli. The vestibular part begins from the vestibular ganglion, which lies on the floor of the internal auditory canal. The peripheral processes of the nerve cells of that ganglion approach the receptor elements of the sacculus, utriculus, and ampulla of the membranous semicircular canals of the inner ear. The cochlear part originates from the spiral ganglion at the base of the bony plate of the cochlea. The peripheral processes of the cells of that ganglion enter into close contact with the receptor apparatus of the spiral organ (organ of Corti), which is located along the entire length of the cochlear canal of the membranous labyrinth. The central processes of the vestibular and spiral ganglia emerge from the inner ear and, as the corresponding parts of the nerve, are directed to the base of the brain. Outside the olivary nucleus of the medulla oblongata the central processes enter the base of the brain and, after uniting, reach their nuclei, which are localized in the corners of the rhomboid fossa.

With infectious or traumatic disorders of the fibers of the cochlear portion of the vestibulocochlear nerve, hearing disorders and even deafness may result. When there are disturbances of the vestibular portion, there is disruption of equilibrium and dizziness.

vestibulocochlear nerve

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

vestibulocochlear nerve

Related to vestibulocochlear nerve: glossopharyngeal nerve, accessory nerve, hypoglossal nerve, vagus nerve

noun

Synonyms for vestibulocochlear nerve

noun a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea

Synonyms

acoustic nerve
auditory nerve
eighth cranial nerve
nervus vestibulocochlearis

Related Words

auditory system
cranial nerve