The function of the Eustachian tube is ventilation and drainage of the middle ear. Torus tubares, a bulge produced by the cartilages part of the Eustachian tube behind its opening. Forza of Rosenmuller, behind Torus tubares there is a forza which is named after the scientist Rosenmuller. It is the most common set of nasopharyngeal carcinoma. The Eustachian tube opening, Torus tubares and the forza of Rosenmuller are placed in the lateral war of nose, whereas the adenogel present in the posterior wall.