regional_part_of Myocardium of region of ventricle Myocardial zone 19 Anteroapical zone of myocardium of left ventricle FMA:86503 Myocardium of anteroapical zone of left ventricle Region of myocardium which has as its parts the cardiac muscle tissue, anterior division of left branch of atrioventricular bundle, the cardiac muscle of left ventricle and the fibrocollagenous sheath of cardiac muscle tissue that is located on the anterior part of the apex zone of myocardium of the left ventricle. Zone 19 of myocardium of left ventricle fma Myocardium of anterior wall of left ventricle