NCIt definition : A canal in the petrous region of the temporal bone that serves as the passage for
cranial nerves (mainly the VII and VIII cranial nerves) towards the middle and inner
ear.;
Alternative definition : UBERON: The internal auditory meatus (also internal acoustic meatus, internal auditory
canal, and internal acoustic canal) is a canal in the petrous bone of the temporal
bone of the skull that carries nerves from inside the cranium towards the middle and
inner ear compartments namely cranial nerve VII and cranial nerve VIII.;