CVA (Cerebrovascular Accident) aka Stroke.

Cerebrovascular Accident (CVA) Cerebrovascular Accident (CVA), more commonly known as a stroke, is a sudden interruption of blood flow in a vessel that supplies the brain. Strokes are the third leading cause of death worldwide; 600,000 strokes occur in the U.S. each year (Taber's 2069). CVA is the most serious type of stroke. A transient ischemic attack (TIA), also known as a mini-stroke, is a temporary interruption of blood flow to the brain. This type of …

…the oxygen carried in the blood. Although collateral circulation sometimes provides an alternative source of oxygenated blood, total oxygen deprivation for more then 3-5 minutes causes neuronal death (Tyrer 159). Works Cited Butler, Jackie, Lewis, Ricki and Shier, David. Hole's Human Anatomy & Physiology. New York: McGraw-Hill, 2002. Taber's Cyclopedic Medical Dictionary. Philadelphia: F. A. Davis Company, 2001. Tyrer, Fay S., Mayer, W. Brem, and John R. Knott. Fundamentals of EEG Technology, Volume 2, Clinical Correlates. Philadelphia: Raven Press, 1989.