Cochlea

Named after the Latin word for snail shell, the cochlea is a coiled, tapered tube containing the auditory branch of the mammalian inner ear. Its core component is the Organ of Corti, the sensory organ of hearing.

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The cochlea consists of three fluid-filled chambers - scala tympani and scala vestibuli (both of which contain perilymph), and scala media (which contains endolymph). The scala tympani and the scala vestibuli are contiguous with each other, merging at the tip of the "snail's shell" - the helicotrema.

Ear: : For an alternative meanings, see ear (disambiguation)....

Organ of Corti: The organ of Corti is the organ in the inner ear of mammals that contains the auditory sensory cells, the so-called hair cells....

Scala tympani: Scala tympani is one of the perilymph-filled cavities in the cochlear labyrinth. It is separated from the scala media by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as scala vestibuli....