The Left Circumflex Artery (LCX) is a branch of the Left Coronary Artery that supplies blood to the lateral and posterior walls of the left ventricle and parts of the left atrium. It plays a crucial role in delivering oxygen-rich blood to these heart regions, ensuring proper cardiac function. The LCX runs along the left side of the heart, wrapping around its back. Blockages or narrowing in this artery can lead to serious conditions, such as angina or myocardial infarction (heart attack), highlighting the importance of maintaining cardiovascular health.