86 LAMENESS IN THE HORSE. 



crural aud tibial nerves and rupture of the gastrocnemii and 

 their tendon. 



Dorsal flexion of the phalanges accompanies anything 

 increasing the angle of the hock, such as dislocation of the 

 flexor pedis perforatus, rupture and stretching of the flexor 

 tendons, sesamoidal ligaments, and finally horizontal 

 fracture of the sesamoid bones. 



