illi BO i I i I J 



concave and is not exactly vertical, but direcl om 



without inward. 



Tin- margins of the orbit ar< rbital and th 



ofcoui nnected at their extremities b) the lat it. 



The supraorbital margin I usually sharper than : 



the frontal ) ■■ and the . 



notch or tv the supraorbital and frontal I 



mit the frontal and supraorbital vessels and nei 

 internally than it d< The ini ital margin 



the maxilla, an nallv by thi 



externall) as far as th( frontal bom A I the internal i 



by the anterior lachrymal i i the frontal 



i- situated The i eternal mar.'';] 1 



particularly by its frontosphenoidal pi 



Mowing foramina and id either i 



i. I'll i I in thi 



the apex of the orbit and t: 

 ophthalmic artei 



! idal) (Fig. 95 ) , 



of the sphenoid, also leads from the cranial in! 

 ilomotor, trcx rdcar, and abdui 



m the upper wall of thi 

 portion is narrow and dosed by a membrane. 



! maxilla 



orbital pn> if the palate bone on one side and tl 

 iter wing and tin ther, 1. 



illarv) fossa into the orbital cavity and transmits the infi 

 the outer wall from the floor of the orbit and i- I 

 internally. The external boundary of thi 

 greater wing ^i the sphenoid Nun-. 



a. The superior opening of tin 

 lachrymal nal lea \ the orbital 



lachrymal (nasal) d 



5. The a Figs. 95 and ... 

 cavity and transmitting the anterior ethmoidal 



6. The / : nd 

 transmitting tlu- posterior ethmoidal .ted 

 in or to one side oi the frontoethmoidal in the inn 



7. Th rbital Fig. 97), in thi .11 of the orbit, pass 

 through the malar bone to the temporal 



oi the same name or their branch. 



S. The entrance of the i r the 



