TTIE ANATOMY OF THE H(»{8E. 



65 



the fetlock joint. Behind this are two supplementary bones, called ses- 

 amoids, 6, in cut 10, and page 65. These serve to protect the back of 

 the joint and some important ligaments passing over it. More fully to 

 illustrate the lower part of the front limbs, we give four figures, show- 

 ing the bones and articulations of the joints of the foot. 



CUT 10.— BONES AND ARTICULATIONS OK THE FOOT. 



The names of these bones are as follows : a, cannon, or shank ; 6, 

 sesamoids ; c, fetlock joint ; d, upper pastern ; e, lower pastern ; /, cof- 

 fin bone J g, navicular bone. The upper and lower pasterns, d, e, have 

 considerable motion one on the other to allow the fjoot to be bent back. 

 The toe is formed by the coffin bone. This is surrounded and covered 

 in by the horny hoof. Hence, its form is never seen unless dissected for. 

 Another small bone, the navicular, g, lies behind and partly within the 

 junction of the coffin and lower pastern. Like the coffin bone, it is 

 inclosed by the hoof. 



