PARALYSIS 
729 
alysis may be divided into partial or general; and partial in¬ 
to two classes, hemiplegia and paraplegia, and when in small 
parts of the body, such as tail or face, might come under the 
head of partial or local paralysis. 
As general paralysis cannot occur without producing im¬ 
mediate death it will not be necessary to make any deduc¬ 
tions in regard to it. But with hemiplegia and paraplegia 
the practitioner often comes in contact, and it is principally 
with these that I shall have to deal in this paper. Hemiple¬ 
gia or paralysis of one side, or half the body, is not met with 
in our patients to the extent that it is in the human family, 
because our patients are not as subject to brain disorders 
and mental strain and activity. 
The causes of hemiplegia are principally tumors in brain, 
particularly of the lateral ventricles, softening of one hemi¬ 
sphere of the cerebrum, pressure from extravasated blood 
clots or thrombi, fracture of cranium, but generally is the re¬ 
sult of emboli obstructing one or more blood vessels in the 
brain. When it is the result of a disease of the brain which 
has existed prior to the paralysis, particularly if of an inflam¬ 
matory character, it seldom attacks the whole of one side of 
the body, but is confined to one side of head or neck, or one 
limb, and may in such cases pass off in a short time. Sensi¬ 
bility in most cases is not impaired, but in some cases the 
sensory as well as motor nerves are involved. 
Having given the principal causes in our subjects we will 
direct your attention to the symptoms and treatment. In 
hemiplegia the attack may be very sudden, the animal falling 
down powerless to move one side of the body. The side that 
is affected presents the following conditions : The ear-part 
of lips will be relaxed, tongue may hang out of mouth, tail 
curved around sideways, often accompanied by inability to 
swallow, together with a constant flow of urine as fast as se¬ 
creted. The sensibility is usually lost, as well as motion, but 
not always. Coldness of the limbs affected is a usual sign, 
though they may be warmer than natural. The prognosis in 
severe cases is unfavorable, but in slight attacks, when the 
animal remains in a standing position, the lecoverv is quite 
probable under proper treatment. 
