attaches_to constitutional_part_of regional_part_of Interventricular septum Muscular part of interventricular septum Membranous part of interventricular septum Endocardium Central fibrous body part of membranous part of interventricular septum Myocardium of interventricular septum Endocardium of interventricular septum Endocardium of cardiac septum which is continuous with the endocardium of the right and the left ventricles. FMA:83584 Interventricular septum endocardium fma Endocardium of cardiac septum Septal wall of right ventricle Septal wall of left ventricle Bulbar part of interventricular septum Muscular part of interventricular septum proper