CAET HOESES. 



35 



ment in cart-horses is usually in the hind legs, and is due to 

 extreme extension of the foot, as ■when going down hill with a 

 heavy weight behind. Consequently it occurs less frequently when 

 drawing four-wheeled carts with a brake, than with two-wheeled 

 carts, the load of which, when going down hill, has to be kept 

 back" by the breeching. Cart-horses with oblique hind pasterns 



Radius 



Upper row of small 1 

 bones of knee / 



Lower row of ditto 



Cannon bone 



Long pastern bone 

 {OS suffraginis) 



Short (lastern bone 

 [ps corona) 



Pedal bone (oj pedis) 



Trapezium 



Outer splint bone 



Sesamoid bones 



Fig. 8. — Bones of lower part of fore leg. {After Chauveau.) 



appear to be more liable to this injury, than those of a different 

 conformation. The ill effects of a mechanical disadvantage are 

 found here. 



In all horses, sprain of the suspensory ligament may occur when 

 getting up off a slippery floor, from excessive extension of the 

 fetlock joints, when the fore legs pre stretched out to the front, 

 with the heels resting on the ground. 



3* 



