in order to examine a blood-labyrinth barrier in the vestibular region , capillary permeability of the vestibular organs , i.e . the sacculus , the utriculus and the ampullae of semicircular canals , were studied light and electron microscopically by the horseradish peroxidase ( hrp ) tracer method .
C1735318
labyrinth
C0042158
utriculus