Oval window Frame: A, B, C, D, E Scala vestibuli High pitch Low pitch

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Oval window Frame: A, B, C, D, E Scala vestibuli High pitch Low pitch Scala media (endolymph) Round window Scala typmpani Perilymph

Panel A , B, C, D, E, F, G, H, I, J, K, L, M Auditory Association Cortex Primary Auditory Cortex Medial Geniculate N. Inferior Colliculus Cochlear Nucleus Cochlea Olivary Nuclei

Panel A , B, C Endolymph Semicircular Canal the cochlea containing endolymph including Continuous with other structures Endolymph remains stationary and pushes against hair cells in gelatinous material Rotation of head and bony labyrinth Hair cells

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