Definition

1. Noun:
   • The eighth cranial nerve: A paired nerve that transmits sensory information related to hearing and balance from the inner ear to the brain.
   • A composite sensory nerve: It consists of two distinct functional parts: the vestibular nerve (for balance and spatial orientation) and the cochlear nerve (for hearing).

Usage Examples

• Noun:
  • Damage to the nervus vestibulocochlearis can cause vertigo and hearing loss.
  • The surgeon carefully identified the nervus vestibulocochlearis during the procedure.

Advanced Usage

• Clinical context: Often discussed in neurology and otolaryngology regarding disorders like acoustic neuroma (a tumor on this nerve), sensorineural hearing loss, or vestibular neuritis.
  • The MRI showed a small lesion affecting the nervus vestibulocochlearis.

Variants and Related Words

• Vestibulocochlear nerve: The more common English term, synonymous with "nervus vestibulocochlearis".
• Cranial nerve VIII: The numerical designation for this nerve.
• Acoustic nerve: A somewhat older and less precise term, as it historically emphasized the hearing (cochlear) function over balance.
• Vestibular nerve: Refers specifically to the branch concerned with balance.
• Cochlear nerve: Refers specifically to the branch concerned with hearing.

Synonyms

• Eighth cranial nerve
• Vestibulocochlear nerve

Related Phrases

• Vestibulocochlear dysfunction: A general term for impaired function of this nerve.
• Vestibulocochlear system: Refers to the broader anatomical and functional system including the inner ear and this nerve.

Noun

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