Definition

Noun: * A composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea: The vestibulocochlear nerve is the eighth cranial nerve (CN VIII). It is a paired nerve responsible for transmitting sensory information related to hearing and balance from the inner ear to the brain.

Usage Examples

• Noun:
  • Damage to the vestibulocochlear nerve can cause hearing loss and vertigo.
  • The surgeon carefully avoided the vestibulocochlear nerve during the procedure.
  • The vestibulocochlear nerve has two distinct functional parts: the vestibular nerve and the cochlear nerve.

Advanced Usage

• Clinical context: The term is frequently used in medical diagnostics, such as in "vestibulocochlear nerve disorder" or "vestibulocochlear nerve schwannoma" (a type of tumor).
  • An MRI was ordered to assess the integrity of the vestibulocochlear nerve.

Variants and Related Words

• Acoustic nerve: A common, though slightly less precise, synonym for the cochlear portion of the nerve. The term "vestibulocochlear nerve" is now preferred as it accurately reflects the nerve's dual function.
• Auditory nerve: Another synonym specifically for the hearing (cochlear) component.
• Eighth cranial nerve (CN VIII): The anatomical designation for this nerve pair.
• Vestibular nerve: Refers specifically to the branch that carries balance information from the semicircular canals.
• Cochlear nerve: Refers specifically to the branch that carries sound information from the cochlea.

Synonyms

• Acoustic nerve
• Auditory nerve (for the cochlear part)
• Eighth cranial nerve (CN VIII)

Related Phrases

• Vestibulocochlear dysfunction: A general term for impaired function of this nerve.
• Vestibulocochlear system: Refers to the entire functional unit, including the inner ear structures and the nerve.

Noun

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