Anterior surface Right brachiocephalic trunk Superior vena cava Right atrium Right ventricle Apex Left ventricle Anterior interventricular sulcus with coronary arteries and veins Left atrium Pulmonary trunk Arch of aorta Left subclavian artery

Posterior surface Arch of aorta Pulmonary arteries Right atrium Right ventricle Apex Left ventricle Posterior interventricular sulcus with coronary arteries and veins Left atrium

Internal anatomy Wall of left atrium Left atrium Left AV (bicuspid/mitral) valve Left ventricle Wall of left ventricle Papillary muscle Interventricular septum Right ventricle Wall of right ventricle Right AV (tricuspid) valve Aortic semilunar valve Right atrium Wall of right atrium Superior vena cava Pulmonary arteries Wall of left atrium Left atrium Aortic semilunar valve Wall of left ventricle Left AV (bicuspid/mitral) valve Papillary muscle Apex Left ventricle Interventricular septum Wall of right ventricle Right ventricle Right AV (tricuspid) valve Wall of right atrium Right atrium Aorta