The ear

A relatively precise and reliable organ of perception, constantly on the alert, the ear is a mechanism, the functioning of which is complicated.

The ear is comprised of 3 elements:

• The external ear: the pinna, the auditory canal and the eardrum.
• The middle ear is comprised of the 3 smallest bones in the human body: the hammer, the anvil and the stirrup (maleus, incus and stapes)
• The inner ear is made up of the cochlea. Filled with liquid, the cochlear canal has 20,000 ciliated cells (nerve cells that transmit the signals to the brain) in each ear.