ocr: Resi dent and Staff Physici. an Patient Education Chart Pulmonary Embolism Trachia - Lungs Bronchi Blood from the heart Area of necrosis Pulmonary artery (carrying venous blood) Blood Absence of blood flow Embolus Absence of blood flow Reprinted with peri mi: ssi on from Resi dent and Staff Physi ci an (c) 1991 by Romaine Pierson Publishers, Inc.