ABSTRACT
The bony labyrinth is filled with perilymph, and communicates with the cerebrospinal fluid of the intracranial cavity. Contained within the bony labyrinth and supported by connective tissue, it is an anatomically and biochemically distinct closed structure, the membranous labyrinth. This structure is filled with endolymph and consists of five confluent but functionally different membranous segments involved in the detection of movement.
