22 



STRUCTURE AND ECONOMY OF THE HORSE. 



suture. It used to be considered that the object of this exten- 

 sive division of the bones was the convenience of ossification, 



The frontal bones. 



The parietal bones. 



The occipital bones. 



The temporal bones. 

 e The malar bones. 

 f The superior maxillary bones, 

 ff The nasal bones. 

 h The inferior maxillary bones. 

 i The posterior maxillary bones. 

 k The atlas, or first vertebra. 

 I The dentata, or second vertebra, 

 m The other five vertebrae. 

 n n n The dorsal vertebrte. 

 o The lumbar vertebrae. 



The sacral bone. 



The ossa coccygis, or bones of the tail. 

 r The haunch bones, or bones of tlie 

 pelvis. 

 The ribs, 



Tlie sternum, or breast bone, 

 u Tlie scapula, or blade bone. 

 V The humerus, or shoulder bone. 

 7V The radius, or fore arm. 

 .r The ulna, forming the elbow. 



a 

 b 

 c 

 d 



P 

 <J 

 r 



s 

 t 



y The bones of the carpus, or knee. 

 z The metacarpus, or cannon bone. 



1 The small metacarpal, or splint bone. 



2 The sessamoid bones at the back of 



the fetlock joint. 



3 Tlie OS sulFraginis, or large pastern. 



4 The OS coronse, or small pastern. 



5 The OS pedis, or coffin bone. 

 The navicular bone is unseen. 



6 The f;vmur, or thigh bone. 



7 The patella, or knee-pan, situated 



in front of the stifle joint. 



8 The tibia, or leg bone. 



9 The OS calcis, forming the point of 



the liock. 



10 The astralagus, the principal bone 



of the hock joint. 



11 The small bones of the hock, the 



seat of spavin. 



12 The metatarsus, or cannon bone. 



13 The small metatarsal, or splint bone. 

 The other bones of the hind leg 



correspond with those of the fore 

 extremity. 



which always commences at the centre, but a more extended 

 view has discovered other wise purposes; for not only is the 

 dovetailed suture the strongest mode of union, but it is also the 

 best adapted for securing the brain from injury, as it yields con- 

 siderably to the impression received, and thus wards off both 



