The natural functioning of the ear and hearing
Sound, in the form of sound waves, enters the ear through the ear canal and causes the ear drum to vibrate.
The vibrations of the ear drum propel the three tiny bones in the middle ear to move.
The movement of the middle ear system causes the fluid of the inner ear or cochlea to bring the cochlear hair cells into motion.
The motion of the cochlear hair cells produces electrical impulses which are sent through the hearing nerve to the brain.
The auditory cortex in the brain interprets the electrical impulse and attach meaning thereto.