#stroke #BrainAttack #StrokeTreatment MEDICAL ANIMATION TRANSCRIPT: The brain receives blood via two major pairs of vessels - the internal carotid and vertebral arteries. The branches of these arteries supply brain cells with oxygen and glucose necessary for their functions. A stroke, also called a cerebrovascular accident, CVA, or brain attack, is an interruption in the brain's blood supply that causes temporary or permanent brain cell dysfunction and damage. With prolonged blood deprivation, called ischemia, metabolic processes diminish, and the brain cells die. Stroke may cause paralysis or weakness, difficulty speaking or understanding speech, balance or coordination problems, difficulty walking, problems with memory or learning, and changes in emotions or personality. Transient ischemic attack or TIA is a brief reduction in brain function resulting from arterial vasospasm or temporary occlusion. TIAs cause short-term changes in speech, motor function, balance, vision, or conscio...