part of part of contributes to morphology of organ part bony labyrinth internal ear osseus labyrinth vestibule Wikipedia:Vestibule_of_the_ear BTO:0003382 XAO:0000199 inner ear vestibulum vestibule of bony labyrinth vestibular apparatus MESH:D014722 NCIT:C33873 EV:0100366 vestibule A small, oval, bony chamber of the labyrinth. The vestibule contains the utricle and saccule, organs which are part of the balancing apparatus of the ear. vestibular part of bony labyrinth bony labyrinth vestibule inner ear vestibule VHOG:0001220 osseous labyrinth vestibule CALOHA:TS-0479 GAID:881 FMA:60183 MA:0001185 UBERON:0005236