OSTEOLOGY. 



19 



Articular processes for the nasal, pre-7naxi//ary, lachrymal and 

 palate bones. 



External border shows — 



Six cavities for the molar teeth, behind them the alveolar 

 tuberosity. Below, the small interdental space. 



Fig. I. 



LATERAL VIF.W OF THE HORSES 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; 11, Malar bone; 12, Upper molar teeth; 13, Fron- 

 tal 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, In- 

 ferior incisor teeth. 



Superior extremity shows — 



A rounded enlargeme?it, lodging the maxillary sinus. 



The infra-o?bital 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. 



