regional_part_of Circumflex branch of left coronary artery Zone of circumflex branch of left coronary artery Zone 15 of circumflex branch of left coronary artery Apical inferior zone of circumflex branch of left coronary artery Apical zone of circumflex branch of left coronary artery FMA:86547 Zone of circumflex branch of left coronary artery which supplies the apical inferior zone of myocardium of left ventricle and is continuous with zone 10 of circumflex branch of left coronary artery. fma