. Diseases of the ear; a text-book for practitioners and students of medicine. Fig. 49.—Vertical section through nasal chambers and pharyngeal vault of lower portion of the septum, opposite the inferior turbinated body and theinferior meatus, has been removed, exposing the course followed by the cathe-ter. The Eustachian orifice is well marked. (Authors specimen.) sort to several as soon as difficulties arise, it being more easyto become expert in the manipulation by the constant use ofone method. Loewenberg * modifies the technique in the following man-ner : When the pharyngeal extr
. Diseases of the ear; a text-book for practitioners and students of medicine. Fig. 49.—Vertical section through nasal chambers and pharyngeal vault of lower portion of the septum, opposite the inferior turbinated body and theinferior meatus, has been removed, exposing the course followed by the cathe-ter. The Eustachian orifice is well marked. (Authors specimen.) sort to several as soon as difficulties arise, it being more easyto become expert in the manipulation by the constant use ofone method. Loewenberg * modifies the technique in the following man-ner : When the pharyngeal extremity of the catheter is felt toimpinge upon the posterior wall of the naso-pharvnx the in- * Arch, fur Ohrenheilk., vol. ii, p. 12. 120 PHYSICAL EXAMINATION. strument is rotated upon its long axis so that the guide ringshall be directed toward the opposite ear; the catheter isthen drawn forward until its concavity is felt to engage theposterior margin of the nasal septum ; it is then rotateddownward through an angle of one hundred and eighty-degrees, until the guide poin
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