OSTEOLOGY. 



Articular processes for the nasal, pre-maxillary, lachrymal and 

 palate bones. 



External border shows 



Six cavities for the molar teeth, behind them the alveolar 

 tuber osity. Below, the small interdental space. 



FIG. 



LATERAL VIEW OF THE HORSE'S SKULL. 



Premaxillary bone; 2, Upper incisors; 3, Upper canine teeth; 4, Superior maxillary 

 bone; 5, Infraorbital foramen; 6, Superior maxillary spine; 7, Nasal bones; 8, 

 Lachrymal bone; 9, Orbital cavity; 10, Lachrymal fossa; n, Malar bone; 12, 

 Upper molar teeth; 13, Frontal bone; 15, Zygomatic process, or arch; 16, Parietal 

 bone; 17, Occipital protuberance; 18, Occipital crest; 19, Occipital condyles; 20, 

 Styloid processes; 21, Petrous bone; 22, Basilar process; 23, Condyle of inferior 

 maxilla; 24, Parietal crest; 25, Inferior maxilla; 26, Inferior molars; 27, Anterior 

 maxillary foramen; 28, Inferior canine teeth; 29, Inferior incisor teeth. 



Superior extremity shows 



A rounded enlargement, lodging the maxillary sinus. 



The infra-orbital canal, running above the molar teeth, ending 

 opposite the third molar by one opening, the other extending 

 into the interior. 



The palatine canal, between the bone and palate, ending at the 

 palatine fissure. 



Inferior extremity shows 



A cavity for the tusk, uniting with the pre-maxillary. 



