. Diseases of the nose and throat . of epiglottis from syphilitic ulceration 415 127. Cicatricial stenosis of larynx, the result of syphilitic ulceration. . 416 128. Lennox Brownes hollow laryngeal dilator with cutting-blade 419 129. Papilloma of cord during respiration 429 XX LIST OF ILLUSTBATIONS. FIG. PAGE 130. Same during phonation 429 131. Fibroma situated beneath the right vocal cord 430 132. Chondroma of the epiglottis 431 133. Angioma of the left aryepiglottic fold 431 134. Extirpation instruments 433 135. Sarcoma of the larynx, as seen from behind 436 136. Tooth-plate in glottis 442 1
. Diseases of the nose and throat . of epiglottis from syphilitic ulceration 415 127. Cicatricial stenosis of larynx, the result of syphilitic ulceration. . 416 128. Lennox Brownes hollow laryngeal dilator with cutting-blade 419 129. Papilloma of cord during respiration 429 XX LIST OF ILLUSTBATIONS. FIG. PAGE 130. Same during phonation 429 131. Fibroma situated beneath the right vocal cord 430 132. Chondroma of the epiglottis 431 133. Angioma of the left aryepiglottic fold 431 134. Extirpation instruments 433 135. Sarcoma of the larynx, as seen from behind 436 136. Tooth-plate in glottis 442 137. Tooth-plate removed 443 138. Laryngeal polypus-forceps, Mackenzies, revolving, with three attach- ments 444 139. Laryngeal polypus-forceps, Waxhams 444 140. Laryngeal polypus-forceps, Fraenkels, cutting-jaw 445 141. Laryngeal polypus-forceps, Mackenzies, articulated 445 142. Lead plate for nasal arch 449 143. Steel pin for nasal transfixion 449 144. Nasal appliance in position 451 SECTION I. Diseases of the Nasal CHAPTER I. ANATOMY OF THE EXTERNAL NOSE, NASAL PASSAGES,AND ACCESSORY SINUSES. The outer nose consists of the visible portion of that organ,composed of bones, cartilages, fibrous tissue, muscles, integument,and mucous membrane. It contains, within, the two vestibulse, sepa-rated from each other perpendicularly by the anterior portion of thetriangular cartilage (Fig. 1) and the internal union of the lower lateralcartilages. The lateral walls are formed by the nasal bones, and the nasalprocesses of the superior maxillary bones, together with the upperand lower lateral and sesamoid cartilages. The septum dividing the two nasal cavities from each other isformed directly below the triangular cartilage, already mentioned, byan additional narrow slip of cartilage at the entrance of the nostrils,termed the columnar cartilage/ The openings of the anterior nares are usually on a lower levelthan the floor of the nose; and they are also protected by a numberof stiff
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