THE FACE 



337 



The external surface (Figs. 264, 265) is about four times as long 

 as high, and somewhat higher in front than behind. It faces outward 

 and forward, and in its anterior third, which passes above into the 

 external surface of the nasal process, it faces upward also. In its 

 posterior two-thirds it faces slightly downward as a continuation of 

 the malar process. Its anterior margin is nearly vertical, and sinuate. 



FIG. 264. 



Vertex, 

 Parietal. 



Frontal. 

 Coronal Suture. 

 Nasal. 

 Postorbital Process. 



Sagittal Suture. 



Spheno-parietal Suture. 



Temporal. 



Postorbital Process. 



Alisphenoid. 



Orbital plate of Frontal. 



.Malar. 

 Lachrymal. 



Infmorbital Foramen. 



Maxillary. 



Third Premolar. 



Mesethmoid. 



Second Premolar. 



Zygoma. 



Postglenoid Process. 

 Auditory Bulla. 



Ethmo-turbinal. 

 Premaxillo-maxillary Suture. 



SKULL, FRONT VIEW. 



A rough triangular space included between two sharp, curved crests 

 articulates with the premaxillary bone. A little behind this space is 

 an oblique swelling which indicates the position of the root of the 

 canine tooth and is called the canine eminence. Behind the eminence 

 is a vertical fossa, more or less well marked, known as the canine 

 depression. Just above this depression is the large oval infraorbital 

 foramen, passing through the anterior part of the malar process and 

 transmitting vessels and nerves. This foramen varies greatly in size ; 

 sometimes there are two foramina, the additional foramen beiilg small 

 and placed above the other and on its inner side. The rest of the 



