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How do we hear?
|When we detect sounds, or noise, our body is changing the energy in sound waves into nerve impulses which the brain interprets. SOUND WAVES are produced when the air is mechanically disturbed.
When we hear a sound, the SOUND WAVES enter the ear canal and cause the eardrum to vibrate.These VIBRATIONS pass through 3 connected bones in the middle ear
This motion SETS FLUID MOVING in the inner ear. Moving fluid bends thousands of delicate hair-like cells which convert the vibrations into NERVE IMPULSES.
Nerve impulses are CARRIED to the brain by the auditory nerve. In the brain, these impulses are CONVERTED into what we "hear" as sound.