FLIX PRODUCTIONS MEDICAL ANIMATION / SCIENCE PHOTO LIBRARY FLIX PRODUCTIONS MEDICAL ANIMATION / SCIENCE PHOTO LIBRARY
Sense of hearing. Animation showing how sound waves produce the sensation of hearing. Sound waves enter the ear canal, and cause vibrations in the eardrum (tympanic membrane), which separates the middle and inner ear. The eardrum is connected to the ossicles, a system of three tiny articulated bones that transmit the vibrations from the eardrum to the fluid-filled cochlea (coiled) in the inner ear. The cochlea contains the organ of corti, which contains rows of hair cells topped with stereocilia. The stereocilia detect tiny movements in the fluid, which are translated into nerve impulses. These travel to the brain, where they are deciphered as sound.
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