EAR & HEARING

 

The ear consists of three parts: outer, middle, and inner

The outer ear picks up and funnels sound through the auditory canal to the eardrum. 

The sound vibrates the eardrum and the movement travels to three tiny bones in the middle ear called the malleus, incus, and stapes. 

Vibrations from the movement of the bones in the middle ear cause the tiny hair cells of the cochlea in the inner ear to move resulting in a wave of energy that excites the nerve of hearing.