FMA definition : Region of heart which has as its parts the right atrium, left atrium and the interatrial
septum and is continuous with the superior vena cava, inferior vena cava and superior
and inferior pulmonary veins.;
Region of heart which has as its parts the right atrium, left atrium and the interatrial
septum and is continuous with the superior vena cava, inferior vena cava and superior
and inferior pulmonary veins.