10a: Structure of the Ear

The image below shows the main parts of the ear. The outer ear or pinna captures sound and funnels it into the auditory canal where it reaches the tympanic membrane or eardrum. The eardrum changes the vibrations in the air into mechanical vibrations which travel through as small set of bones called ossicles (the malleus, incus and stapes) in the middle ear. These bones are connected to the cochlea which is in the inner ear. The cochlea changes the mechanical vibrations into nerve impulses that travel to the brain.


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