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Eustachian Tube Dysfunction: Definition, Symptoms and Treatments
The Eustachian tube is a narrow tube connecting the back of the nose and the middle ear. Normally, the tube is filled with air and opens when we yawn, swallow or chew. It functions to protect the middle ear from pathogens; to ventilate the middle ear, which allows the eardrum to work and vibrate properly; and, to help drain mucus from the middle ear.