internal auditory canal

• abnormal if difference in diameter > 2 mm

• schematic (right ear, veiwed from medially):

  
                               7       8-sv
            anterior      - - - - - - - - - - - -       posterior
                               8-c     8-iv
  
  
  

  7

  facial nerve (VII)

  8-c

  cochlear division of VIII

  8-sv

  superior vestibular division

  8-iv

  inferior vestibular division

© 2002, C.E. Kahn, Jr.
2002-04-18