66 



OSTEOLOGY 



through foramina in the cribriform plate to be dis- 

 tributed to the mucous membrane of the nasal cavities. 

 The anterior, middle, and posterior ethmoidal cells are 

 lodged in this bone; they communicate with the nasal 

 cavities. It possesses a perpendicular plate, which 

 forms a portion of the nasal septum between the two 

 nasal cavities. 



Bones of the Face. The Two Nasal Bones. These 

 form the bridge of the nose. They are very small 

 but strong considering their size. 



Perpendic* 



plate of etlt 

 moid. 



Space for 



triangular 



cartilage 



of septum. 



Vomer. 



FIG. 30 



Frontal sinuses. 



Sphenoidal sinuses. 



Palate process 

 Lit. ptcri/(i<>i<i 

 plate. 



Vomer in situ. 



The Vomer. This is a thin flat bone which joins 

 with the perpendicular plate of the ethmoid bone, and 



