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: anterosuperior, anteroinferior, posterosuperior, posteroinferior. 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 (CN VIIIc) is inferior within the canal
Anatomy: Head and neck

Anatomy: Head and neck

Article information

rID: 2037
Section: Mnemonics
Tag: anatomy, ear
Synonyms or Alternate Spellings:
  • IAC nerve position (mnemonic)
  • seven up coke down (mnemonic)
  • 7 up - coke down (mnemonic)
  • seven up - coke down (mnemonic)
  • 7 up coke down (mnemonic)

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Cases and figures

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