Cross-Section of a Coronary Artery (IMAGE) Society for Industrial and Applied Mathematics Caption This is a cross-section of a coronary artery with plaque buildup: "A" shows inserted deflated balloon catheter; balloon is inflated in "B"; "C" shows widened artery. Source: National Heart, Lung, and Blood Institute; National Institutes of Health; US Department of Health and Human Services. Credit National Heart, Lung, and Blood Institute; National Institutes of Health; US Department of Health and Human Services. Usage Restrictions Please include credit to National Heart, Lung, and Blood Institute for image. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.