140 



SPECIAL ANATOMY OF THE SKELETON 



process of the maxilla and lacrimal bones; in the middle, by the ethmeid and imii 

 surface of the body of the maxilla and turbinated bone; behind, by the vert f ic 



plate of the palate bone; and the internal pterygoid plate of the sphenoid. Upc 



ANTRUM OF 



HIGHMOF.E 



BRISTLE PASSED THROUGH 

 INFUNDIBULUM FROM 

 FRONTAL SINUS TO 

 MIDDLE MEATUS 



PROBE PASSED 

 THROUGH LACRI- 

 MAL CANAL 



FRONTAL CANAL 



NASAL CANAL 



FIG. 105. Coronal section through the frontal sinus and nasal fossa. (Poirier and Charpy.) 



Crest of nasal bone 



Nasal spine of_ 

 frontal bone. 



Space for triangular ( 

 cartilage of septum 



Perpendicular plate 

 of ethmoid. 



Orest of palate bone, 

 of maxilla. 



FIG. 106. Inner wall of nasal fossre, or septum of nose. 



