Answer
Sound waves travel from the tympanic membrane (eardrum) to the hair cells in the Corti through the following pathway:
First, the sound waves hit the tympanic membrane, which passes these vibrations through three auditory ossicles in the order - Malleus (hammer) → Incus (anvil) → Stapes (stirrup). The stapes then vibrates against the oval window of the cochlea. This movement at the oval window transmits the vibrations into movement of the perilymph inside the scalae (chambers) of the cochlea. Then the vibration of perilymph causes the basilar membrane to move up and down. The hairs of the basilar membrane are pushed against the tectorial membrane above them. These hairs are bent as a result, which creates the electrical message, which is transmitted to the brain containing the information of sound vibrations.
Work Step by Step
Same as above.
