Description: This set of medical illustrations depicts the mechanism of action of a pulmonary embolism. The first illustration orients the viewer to the cardiovascular system within the figure, pointing out that an embolus starts from the lower extremity (leg) and travels through veins to the heart. In the second image, the embolus is seen in the pulmonary artery within the lung, having traveled from the heart. In the third drawing, the embolus gets lodged in the pulmonary artery and blocks blood flow into and oxygen/carbon dioxide exchange within the lungs.
Last Updated: Apr 3rd, 2017
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