The nervous tissue that is injured may be in the brain, the spinal cord, or in the muscles themselves. One of the most frequent causes of paralysis is stroke, in which hemorrhage, thrombosis, or obstruction of a cerebral vessel interferes with nerve function. Another disorder in which a resting tremor is one of the main symptoms, accompanied by slowness and poverty of movement, muscular rigidity, and postural instability is Parkinsonism .
Cerebral palsy is due to an injury to the brain motor tissue before or during birth.
However, this disorder is nonprogressive. Partial or complete paralysis often accompanies multiple sclerosis. Listing from Electric Library , a pay service. Copyright 2001 Infonautics Corporation . All rights reserved.