The British Medical Association ILLUSTRATED MEDICAL DICTIONARY CORONARY ARTERY Superior vena cava Aorta Left main coronary artery Left circumflex artery Pulmonary veins Right main coronary artery Left anterior descending artery Coronary vein Inferior vena cava Descending aorta coronary Any structure that encircles like a crown. The term usually refers to the coronary arteries encircling the heart. It is also sometimes used as a nonmedical term for a heart attack (see myocardial infarction). coronary artery Either of the 2 main arteries that supply the tissues of the heart with oxygen-rich blood. These arteries, known as the left and right main coronary arteries, arise directly from the aorta
