what part of the cns causes paralysis
Causes. The nerve damage that causes paralysis may be in the brain or spinal cord (the central nervous system) or it may be in the nerves outside the spinal cord (the peripheral nervous system). The most common causes of damage to the brain are: 1  stroke.amage to the spinal cord is most often caused by trauma, such as a fall or a car crash. Other conditions that may damage nerves within or immediately adjacent to the spine include: 1  tumor. ( 2 also called a ruptured or). 3  spondylosis (a disease that causes stiffness in the joints of the spine).