Sound waves hitting the eardrum set it into motion. Trace the pathway of vibrations from the eardrum to the spiral organ of Corti, where the hair cells are stimulated.

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soporoseun · Accepted Answer

Sound waves travel to the eardrum and the three ossicles set the cochlear fluid into a vibration state by exerting pressure on the oval window. The amplitude of the sound is increased by the activity of ossicles in order to increase the force exerted on the oval window.The oval window then transfers the vibration to the fluid of the inner ear which conducts the vibration to the basilar membrane.Basilar membrane contains receptors in form of hairs the Corti organ. The length of these fibers can fine tune the region that will vibrate at each specific frequency and high frequency sounds disturb shorter fibers and low frequency sounds disturb longer fibers.Stimulation of hairs of organ of Corti stimulates receptor cells of the oval window and the impulses are transmitted via hairs along the cochlear nerve to the auditory complex.

Sound waves hitting the eardrum set it into motion. Trace the pathway of vibrations from the eardrum to the spiral organ of Corti, where the hair cells are stimulated.

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