252 
THE VETERINARY SCIENCE 
Causes. — It may be the result of injury to the brain or 
spinal cord, tumors in the vicinity of these organs or great 
excitement. Injury to the back may occur at the time of 
falling or when being cast for an operation. Horses used in 
the hunt sometimes develop it because of slipping or severely 
straining the muscles under the spine. A rib fracture some- 
times renders a horse unable to rise to his feet. It may 
develop in a stallion because of serving a great many mares. 
Cows are more subject to paralysis than horses. 
Symptoms. — Partial paralysis renders that part of the 
body affected powerless and senseless. Should one side, for 
example, be paralyzed, it is so indicated by walking in a 
circle ; again if the seat of the trouble be in the hind quarters, 
Fig. 34. — Paralysis of the Hind Lcgi. 
such will be apparent because of the loss of power in these 
parts. There is sufficient power to raise the body upon the 
front feet but that is all. The loss of the sense of feeling may 
be proven by pricking the affected part with a pin when 
apparently no notice will be taken of it. Even when unable 
to stand because of paralysis the appetite may be fairly good. 
Treatment. — Should he be able to bear his own weight, 
raise him with pulleys or slings. In warm weather apply a 
