A journey through the ear
Sounds are waves. They are collected by the 1) concha and directed through the 2) auditory canal to the 3) eardrum. The eardrum begins to vibrate and thus transmits the sound waves to the small bones in the 4) middle ear. A membrane transfers the vibrations on to the 5) cochlea. Hair sensory cells are set into motion there and the sound waves are converted into nerve impulses. Finally the 6) auditory nerve sends the impulses to the brain where they are perceived as sounds and deciphered.