Background: The right and left coronary arteries are the branches arising from the ascending aorta. They lie within subendocardial fibrofatty tissue and supply blood to the heart. The left coronary artery (LCA) originates from the left coronary sinus and splits into two branches. the circumflex artery (CX) and the left anterior descending artery (LAD) also called the anterior interven... https://wholelatteslovers.shop/product-category/portafilter/