what is the structure that leads from the middle ear to the nasopharynx?
The Eustachian tube /juËËsteÉª.ÊÉnËtjuËb/ , also known as the auditory tube or pharyngotympanic tube, is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear. In adult humans the Eustachian tube is approximately 35 mm (1.4 in) long. It is named after the sixteenth-century anatomist Bartolomeo Eustachi.