vestibulocochlear nerve

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vestibulocochlear nerve

A doctor points to a diagram of the vestibulocochlear nerve in an anatomy textbook.

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.
vestibulocochlear nerve

A doctor points to a diagram of the vestibulocochlear nerve in an anatomy textbook.

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

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