The Middle Cerebral Artery is where most blockages occur in the central nervous system. [1] This artery has both superficial and deeper branches. read more
Primary lateral sclerosis is a disease of the upper motor neurons, while progressive muscular atrophy affects only lower motor neurons in the spinal cord. In progressive bulbar palsy, the lowest motor neurons of the brain stem are most affected, causing slurred speech and difficulty chewing and swallowing. read more