regional_part_of Anterior interventricular branch of left coronary artery Zone of anterior interventricular branch of left coronary artery Zone 14a of anterior interventricular branch of left coronary artery Apical anteroseptal zone of anterior interventricular branch of left coronary artery FMA:86514 Zone 14a of LAD Zone of anterior interventricular branch of left coronary artery which supplies the apical anteroseptal zone of myocardium of left ventricle and is continuous with zone 13 of anterior interventricular branch of left coronary artery. fma