Our ears are constantly working through a series of intricate processes which we take it for granted.First the sound waves enter the ear canal and cause the ear drum to vibrate.These vibrations travel through three tiny bones in the middle ear, called the ossicles. The ossicles cause the sound to be amplified before it enters the inner ear.
The inner ear contains a fluid-filled cochlea that is lined with thousands of tiny hair cells. As the fluid moves in waves along the cochlea, approximately 12,000 hair cells bend. The frequency and intensity of the sound is determined by which hair cells bend.Stimulation of these sensory cells generates an electrical signal which travels to the brain via the auditory nerve. These nerve impulses are the “language” that the brain understands and converts into meaningful sounds.This is how we hear
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