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PRINCIPLES OF VETERINARY SCIENCE 



A process is a projection or elevation. 

 A tuberosity is a rough or obtuse process. 

 A tubercle is a small and usually more or less pointed process. 

 A condyle is a rounded and somewhat elongated process. 

 A fossa is an irregular ditch-like depression. 

 A foramen is an aperature for the passage of vessels and 

 nerves. 



A facet is a flat articular surface. 



Occipital Parietal 



_1 _J 



Squamous temporal 



. Frontal 



Lacrimal 



Fig. 5. — Skull of the horse (right view) : 1, 2, Occipital bone; 3, 4, 5, 6, 7, 8, 9, 

 processes of temporal bone; 10, 11, 12, parts of frontal bone; 13, 14, 15, lacrimal 

 bone; 16, malar bone; 17, tuberosity of maxilla; 18, facial crest; 19, infra-orbital 

 foramen; 20, nasomaxillary notch; 21, body of premaxilia; 21', nasal process of 

 same; 22, 23, 24, 25, 26, 27, 28, 29, mandible; 30, interdental space; 31, incisor 

 teeth ; 32, canine teeth ; 33, hyoid bone. (Sisson, Anatomy of Domestic Animals.) 



BONES OF THE AXIAL SKELETON 



The axial skeleton consists of the head and trunk. 



A. The head is composed of the bones that form the skull 

 and the hyoid bone. 



The skull is divided into the cranium, which encloses the brain 

 and the essential organs of hearing and the face, which includes 

 all the other bones of the head except the hyoid (Fig. 5) . Most 



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