in guideline Paralysis http://purl.obolibrary.org/obo/HP_0003470 SCDO:0000865 Sufficient Provide source for additional info. Paralysis can be complete or partial. It can occur on one or both sides of your body. It can also occur in just one area, or it can be widespread. Paralysis of the lower half of your body, including both legs, is called paraplegia. Paralysis of the arms and legs is quadriplegia. Inability to Move HP:0003470 Paralysis of voluntary muscles means loss of contraction due to interruption of one or more motor pathways from the brain to the muscle fibers. Motor paralysis is often accompanied by an impairment in the facility of movement. Most paralysis is due to strokes or injuries such as spinal cord injury or a broken neck. Other causes of paralysis include: Nerve diseases such as amyotrophic lateral sclerosis, Autoimmune diseases such as Guillain-Barre syndrome, Bell's palsy, which affects muscles in the face, Polio used to be a cause of paralysis, but polio no longer occurs in the U.S. Abnormal Nervous System Physiology Evidence-Based Management of Sickle Cell Disease