Labels:text OCR: Reprinted with permission from Resident and Staff Physician (c) 1991-92, 1993 by Romaine Pierson Publishers, Inc. Types of Ischemic Strokes Thrombosis * Formation of a blood clot on atherosclerotic plaque 32 Resident and Staff Physician Patient Education Chart Ischemic Inadequate blood flow causes an area of brain damage Embolism *Clot of material originating in the heart travels to and blocks an artery in the brain Affected areas