Eustachian Tube, also auditory tube or pharyngealtympanic tube, links the nasopharynx to the middle ear. The tube drains mucus away from middle ear into nasopharynx. It also equalizes air pressure on either side of eardrum. It was named after a scientist of the 16th century who was considered one of the founders of the science of human anatomy, Bartolomeo Eustachius. The eustachian tube was founded as early as 400 B.C., but the first detailed description of the tube was written by…