. Diseases of the nose and throat . the same cartilage. 4, Anterioraccessory cartilages remarkable for their ovoidal form and the constancyof their existence. 5, External branch of the alar cartilage. 6, Union ofthis branch with the internal branch. 7, 8, 9, Secondary cartilaginousbranches added to the external branch of the alar cartilage. 10, Accessorycartilage not constantly found. (After Bosworth.) The outer walls of the nasal fossa? are formed from before back-ward by the nasal, the superior maxillary, the lacrymal, the ethmoid,the palate, and the internal pterygoid plate of the sphenoid.
. Diseases of the nose and throat . the same cartilage. 4, Anterioraccessory cartilages remarkable for their ovoidal form and the constancyof their existence. 5, External branch of the alar cartilage. 6, Union ofthis branch with the internal branch. 7, 8, 9, Secondary cartilaginousbranches added to the external branch of the alar cartilage. 10, Accessorycartilage not constantly found. (After Bosworth.) The outer walls of the nasal fossa? are formed from before back-ward by the nasal, the superior maxillary, the lacrymal, the ethmoid,the palate, and the internal pterygoid plate of the sphenoid. At-tached horizontally to this bony wall, arranged from above downward,are three scroll-like bones; the superior, the middle, and the in- ANATOMY OF THE NOSE. ferior turbinateds. The superior turbinated, descending verticallyfrom the cribriform plate of the ethmoid, is only rudimentary in middle turbinated is larger, and has its origin in the lateral massof the ethmoid. The inferior turbinated, much larger than the middle. 12 13 14 16 1718 - 19 2021 Fig. 2.—Sagittal section of skull, just to the right of the septum,showing right nasal fossa. 1, Incisor canal. 2, Hard palate. 3, 4, Partsof median crus of the cartilage of the aperture. 5, Anterior part of thesame cartilage. 6, Cartilage of the septum. 7, Groove leading to middlemeatus. 8, Aagger nasi. 9, Frontal sinus. 10, Inferior ethmoid , Superior ethmoid concha. 11<7, Superior meatus or ethmoid fissure. 12,Recess of upper meatus. 13, Entrance to sphenoid sinus. 14, Pituitaryfossa. 15, Sphenoid sinus. 16, Inferior turbinal (maxillary concha). 17,Pod passed into Eustachian tube. 18, Salpingopharyngeal fold. 19, Softpalate. 20, Uvula. 21, Tongue. (After Lennox Browne, 1899.) b DISEASES OF THE NASAL PASSAGES. one, extends right through the nasal cavity from front to back alongthe bony wall, and is attached to the ethmoid, the superior maxillary,the lacrymal, and the palate bones. The space between the supe
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