Sound waves cochlear structure

Auditory tube

Basilar membrane

Cochlear duct (contains endolymph)

Cochlear nerve

External acoustic meatus

Incus

Malleus

Membranous labyrinth

Oval window

Round window

Scala tympani

Scala vestibuli

Space between bony labyrinth and membranous labyrinth (contains perilymph)

Spiral organ

Stapes

Tectorial membrane

Tympanic membrane

Vestibular membrane