Internal auditory canal nerves (mnemonic)

A mnemonic to remember the relative position of nerves inside the internal auditory canal (IAC) is:

  • Seven up, Coke down


Four nerves pass through the IAC:

Four are the nerves and four are the quadrants of the IAC: antero-superior, antero-inferior, postero-superior, postero-inferior. In each quadrant, there is the passage of one nerve (see picture). In the posterior quadrants are the two vestibular nerves, while in the anterior quadrants are the other two - the mnemonic can be used to remember their position.


  • Seven up: facial nerve (CN VII) is superior within the canal
  • Coke down: cochlear nerve (CNVIIIc) is inferior within the canal
Head and neck anatomy
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Article information

rID: 2037
Section: Mnemonics
Tag: anatomy, ear
Synonyms or Alternate Spellings:
  • 7 up coke down
  • seven up - coke down
  • 7 up - coke down
  • seven up coke down

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Cases and figures

  • Drag
    Diagram: inner ear
    Drag here to reorder.
  • Drag
     Mnemonic: relationship of nerves in the IAM
    Drag here to reorder.
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