The
cochlea is a coiled, tapered tube inside the
inner ear. It is responsible for transmitting
sound to the
auditory nerve[?]. The
stapes transmits vibrations to the
fenestra ovalis on the outside of the cochlea, which vibrates
perilymph[?] fluid inside the cochlea, which in turn vibrates the
basilar membrane[?]. When the basilar membrane moves, it stimulates hair cells in the
organ of Corti[?], which are connected to the auditory nerve; the auditory nerve transmits sound data to the
brain.