The anterior interventricular artery, often clinically termed the left anterior descending artery, is a branch of the left coronary artery. It originates at the left margin of the pulmonary trunk, anterior to the left atrial auricle. It descends on the sternocostal surface of the heart within the anterior interventricular groove. During this course it may give off several branches e.g.:
Within the groove, the anterior interventricular artery passes around the inferior border of the heart. On the inferior surface of the heart it anastomoses with the posterior interventricular branch of the right coronary artery.
The anterior interventricular artery supplies the:
The left anterior descending artery is the one most commonly affected by disease, predominantly atherosclerotic narrowing.
Last reviewed 01/2018