ch a nerve is distributed. Apoplexy may be termed a
general paralysis, and in nonfatal attacks is a frequent cause of the
various forms of palsy.

GENERAL PARALYSIS.--This can not take place without producing immediate
death. The term is, however, usually applied to paralysis of the four
extremities, whether any other portions of the body are involved or not.
This form of palsy is due to compression of the brain by congestion of
its vessels, large clot formation in apoplexy, concussion, or shock, or
any disease in which the whole brain structure is involved in functional
disturbance.

HEMIPLEGIA (PARALYSIS OF ONE SIDE OR HALF OF THE BODY).--Hemiplegia is
frequently the result of a tumor in the lateral ventricles of the brain,
softening of one hemisphere of the cerebrum, pressure from extravasated
blood, fracture of the cranium, or it may be due to poisons in the blood
or to reflex origin. When hemiplegia is due to or the result of a prior
disease of the brain, especially of an inflammatory character, it is
seldom complete; it may affect only one limb and one side of the head,
neck, or muscles along the back, and may pass off in a few days after
the disappearance of all the other evidences of the primary affection.
In most cases, however, hemiplegia arises from emboli obstructing one or
more blood vessels of the brain, or the rupture of some vessel the wall
of which had become weakened by degeneration and the extravasation of
blood. Sensibility in most cases is not impaired, but in some there is a
loss of sensibility as well as of motion. In some cases the bladder and
rectum are involved in the paralysis.

_Symptoms._--In hemiplegia the attack may be very sudden, and the animal
fall, powerless to move one side of the body; one side of the lips will
be relaxed; the tongue may hang out on one side of the mouth; the tail
curved around sideways; an inability to swallow feed or water may be
present, and often the urine dribbles away as fast as it collects in the
bladder. Sensibility of the affected side may be entirely lost or only
partial; the limbs may be cold and sometimes unnaturally warm. In cases
wherein the attack is not so severe the animal may be able to maintain
the standing position, but will have great difficulty in moving the
affected side. In such cases the animal may recover from the disability.
In the more severe, in which there is complete loss of power of
movement, recoveries are rare.

PARAPLEGIA (TRANS