regional_part_of Anterior interventricular branch of left coronary artery Zone of anterior interventricular branch of left coronary artery Zone 13 of anterior interventricular branch of left coronary artery Apical anterior zone 1 of anterior interventricular branch of left coronary artery FMA:86510 Zone 13 of LAD Zone of anterior interventricular branch of left coronary artery which supplies the apical anterior zone of myocardium of left ventricle and is continuous with zones 7, 14 and 17 of anterior interventricular branch of left coronary artery. fma Apical zone of anterior interventricular branch of left coronary artery