The canals are passageways making up a labyrinth hidden in the hard bone of the skull called the temporal bone. Inside this bony maze is another labyrinth, called the membranous labyrinth.
इस अस्थि - भूलभुलैया के अन्दर एक और आन्तरकर्ण है, जिसे झिल्लीयुक्‍त आन्तरकर्ण कहा जाता है ।