62 THE ANATOMY OF THE HORSE. 



THE PELVIS. 



E, the ossa innominata, consisting of three bones upon 

 each side ; a, the iUum ; b, the pubis ; c, the ischium : the 

 three bones unite at the cavity which receives the head of 

 the thigh bone ; 9, 9, the inferior spines of the ihum ; 10, 

 the superior spine, which partly covers the first sacral spine ; 

 c, c, the ischiatic spines, 



THE THIGH AND STIFLE JOINT. 



F, F, the femurs ; d, the round head of the bone ; e, the 

 short neck of the femur ; /, the great trochanter ; g, the 

 small external trochanter ; h, the small internal trochanter ; 

 i, i, the sulcus whence the gastrocnemii muscles originate ; 

 J, J, the posterior condyles of the femur ; k, k, the anterior 

 trochlea over which the patella glides ; G, G, the patellas : 

 the interarticular cartilages of the stifle joint, as well as the 

 cartilages tipping the dorsal lumbar sacral spines, and the 

 superior margin of the blade bone or scapula, are necessarily 

 omitted in this delineation, which is admirably drawn from 

 a macerated skeleton. 



THE TIBIA AND FIBULA, OR LEG BONES, AND THE HOCK JOINT. 



H, H, the tibias ; I, I, the heads of the bones ; m, m, the 

 fibulas ; n, n, the inferior head of the tibia ; /, /, the hock 

 joint ; 0, 0, the astragalus ; p, p, the calcis forming the 

 point of the hock. 



THE POSTERIOR SHANK BONES. 



K, K, the canons, metatarsals, or shank bones ; L, L, 

 the splint bones. 



THE BONES OF THE PASTERNS, AND FEET, OF THE POSTERIOR 



LIMBS. 



M, M, the sessamoids ; N, N, the large pastern bone ; 

 0, 0, the smaller pastern bone ; p, p, the pedal bones. 



BONES OF THE ANTERIOR EXTREMITY. 



Q, the scapula or blade bone ; a, the superior margin 

 whence the cartilage has been removed ; b, the spine of the 

 scapula ; c, the anterior fossa of the scapula ; d, the poste- 

 rior fossa ; e, the shallow cup which receives the head of 

 the humerus : the cartilage, which is situated around the 



