anatomy of inner ear and cross-section of cochlea. organ of corti, the sensory organ of hearing. spiral ganglion

inner ear cochlea crosssection spiral organ corti sensory ganglion osseous lamina auditory pathway diagram anatomy cross section hearing graphic mechanism healthy part cochlear vector acoustic scheme medicine structure incus membrane medical vestibular tympanic pinna anatomical science tube cavity outer malleus sense eardrum internal canal human hear illustration biology sound