82 



ELEMENTS OF HIPPO LOGY. 



arm-bone at the shoulder-joint. Unlike the other joints in the 

 horse's anatomy, these two bones are not bound together by 

 numerous ligaments, but by one very strong enveloping ligament, 



HOOF 



Figure 57. — External Nomenclature of Front Leg. 



which permits great freedom of extension and flexion, and some 

 side-play. It is a very strong joint, and is not liable to sprain, 

 except from external causes. In almost every case of obscure 



