A sound wave strikes the tympanic membrane, how does the sound travel to the vestibulochoclear nerve?
- 1. Vibration of the tympanic membrane causes auditory ossicles to move
- 2. Movement of the stapes puts pressure on the oval window
- 3. Pressure from the oval window causes waves in the perilymph of the scala vestibuli
- 4. Waves in the scala vestibuli cause the basement membrane of the cochlear duct to rub hair cells against the tectorial membrane
- 5. Hair cells depolarize sending AP on nerve fibers to the vestibulocochlear nerve
- 6. Perilymph waves continue to the scala tympani and release on the round window