SKELETON AND STRUCTURE. 



55 



A The head. 



a The posterior maxillary, or under jaw. 



b The superior maxillary, or upper jaw ; near the latter is a foramen, through which pass th« 

 nerves and blood-vessels, which chiefly supply the lower part of the face. 



c The orbit, or cavity containing the eye. 



d The nasal bones, or bones of the nose. 



e The suture dividing the parietal bones below from the occipital bones above. 



/ The inferior maxillary bone, containing the upper incisor teeth. 



B The seven cervical vertebra', or bones of the neck. 



C The eighteen dorsal vertebra?, or bones of the back. 



D The six lumbar vertebrae, or bones of the loin. 



E The five sacral vertebrse, or bones of the haunch. 



F The caudal vertebrae, or bones of the tail, generally about fifteen in number. 



G The scapula, or shoulder blade. 



n The sternum, or chest. 



1 The costa?, or ribs, seven or eight, articulated with the sternum, and called the true ribs, and 

 ten or eleven united together by cartilage, called the false ribs. 



J The humerus, or bone of the arm. 



K The radius of bone of the forearm. 



L The ulna, or elbow. The point of the elbow is called the olecranon. 



M The carpus, or knee, consisting of seven bones. 



N The metacarpal bones. The large metacarpal, or cannon and shank in front, and the smaller 

 metacarpal, or splent bones, behind. 



g The fore-pastern and foot, consisting of the os suffraginis, or the upper and larger pastern bone, 

 with the sessamoid bones behind, articulating with the cannon and greater pastern ; the os 

 corona, or less pastern, the os pedis, or coffin bone, the 08 navioulare, or navicular or 

 shuttle bone, not seen, and articulating with the smaller pastern and cofl&n bones. 



h The corresponding bones of the hind feet. 



O The haunch, consisting of three portions ; the ilium, the ischium, and the pubis. 



P The femur, or thigh. 



Q The stifle joint, with the patella. 



Ji The tibia, or proper leg-bone ; behind is a small bone called the fibula. 



S The tarsus, or hock, composed of six bones. The prominent part is the os calcis, or point of 

 the hock. 



T The metatarsals of the hind leg. 



