constitutional_part_of regional_part_of Wall of inflow part of left ventricle Posterior papillary muscle of left ventricle FMA:7266 Papillary muscle of left ventricle which has as its parts the posteromedial and anterior heads of the posterior papillary muscle of left ventricle and is continuous with the inferior wall of left ventricle.. fma Myocardial zone 8 Papillary muscle of left ventricle Inferior wall of left ventricle