7) Fill in the blank. You are listening to the radio station. The statements below describe how you are able to hear the music. Arrange them chronologically by filling in 1 - 6. The vibrations then pass through three different bones in the middle ear. Sound waves travel through the air from the radio. As the hairs move, nerve impulses are activated and sent to your brain where your cerebrum then interprets the sound. These waves cause the air to vibrate; when the vibrations reach your outer ear and hit a membrane called the eardrum, they cause it also to vibrate. The waves of fluid then hit hair cells in the inner ear, causing them to bend. After traveling through the middle ear, the vibrations reach the inner ear. Fluid in the cochlea also begins to vibrate and moves like a wave.
