part of part of petrous part of temporal bone bony labyrinth http://upload.wikimedia.org/wikipedia/commons/2/22/Gray920.png Ideally we would place a spatially disjoint from relationship to membranous labyrinth, but there are many parts in common. this should be resolved. VHOG:0001219 labyrinthus osseus XAO:0000193 MA:0000238 EMAPA:36580 EV:0100362 osseus labyrinth UBERON:0001839 BTO:0004685 osseous labyrinth CALOHA:TS-2080 bony labyrinth A system of fluid passages in the inner ear, including both the cochlea, which is part of the auditory system, and the vestibular system, which provides the sense of balance. The bony labyrinth, or osseous labyrinth, is the network of passages with bony walls lined with periosteum. The bony labyrinth is lined with the membranous labyrinth. There is a layer of perilymph between them. The three parts of the bony labyrinth are the vestibule of the ear, the semicircular canals, and the cochlea. The vestibular system is the region of the inner ear where the semicircular canals converge, close to the cochlea (the hearing organ). The vestibular system works with the visual system to keep objects in focus when the head is moving. Joint and muscle receptors also are important in maintaining balance. The brain receives, interprets, and processes the information from these systems that control our balance. [WP,unvetted]. SCTID:279727008 UMLS:C0458699 AAO:0011078 FMA:60179 Wikipedia:Bony_labyrinth NCIT:C33227 internal ear vestibular system multi organ part structure