174 



THE HORSE 



can be seen between them, the horse is said to be " spHt up 

 behind," an indication of want of power, and a conformation 

 to be avoided. Such horses are also sometimes termed 

 " turkey-thighed." 



Passing over lesser muscles, which, however important, 

 are not easily recognised by the ordinary horseman, notice 

 must be drawn to the extensor pedis (v) and the peronoeus 

 (iv), which lift the foot forward, and are very important. 

 The former arises behind the stifle, from the extremities of 



PLATE X. 



Tendons of the Fore-leg. 



k Cannon or Shank. 

 I Splint bones. 

 n Fetlock joint, 

 o Upper pastern. 

 q Lower pastern. 

 J) Coffin bone. 

 r Extensor tendon. 

 s Flexor perforatus. 

 t Flexor perforans. 

 u Metacarpal liganaent. 

 V Superior sesamoidal ligament. 

 10 Bifurcation of sesamoidal ligament. 

 X Continuation of branch of sesamoidal 



ligament. 

 y Continuation of flexor perforans, which is 



afterwards inserted into the os pedis, 



ofter passing over the navicular bone 



(not shown). 



the two thigh-bones, and passing in front of the hock, where 

 a sheath confines it to its place, after it has become 

 attentuated into a tendon, it continues its course to the 

 foot, and is inserted into the front of the cotfin-bone. The 

 peronoeus arises from the fibula (Plate III., H) and taking a 

 more lateral direction than the extensor pedis, the tendon 

 passes on the outside of the hock, and then descends to 

 the foot with the extensor pedis. On the other margin of 

 the " second thigh," and just under the thigh (tibia), are the 

 extremities of the gastrocnemi, and on their development, 

 or the want of it, depends whether the second thigh appears 



