nasopharynxListen to pronunciation(NAY-zoh-FAYR-inx)The upper part of the throat behind the nose. An opening on each side of the nasopharynx leads into the ear.More InformationNasopharyngeal Cancer TreatmentEnlarge this image in new windowAnatomy of the pharynx. The pharynx is a hollow, muscular tube inside the neck that starts behind the nose and opens into the larynx and esophagus. The three parts of the pharynx are the nasopharynx, oropharynx, and hypopharynx.Search NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#