How do You Hear?

• Transcript

  How We Hear

  Sounds are all around us.

  We hear when these sounds pass through the outer, middle and inner parts of our ears, sending thousands of tiny vibrations up to our brain for interpretation.

  First sound travels through the outer ear canal and makes the eardrum move. When the eardrum moves, the three middle ear bones vibrate. This vibration creates movement of fluid in the inner ear also known as the cochlea.

  The fluid movement causes sensory receptors in the coiled shaped cochlea, to send a signal along the auditory nerve to the brain—and this is how we hear.