Heart internal structure

This 3d printed heart has been dissected to display the internal structures of the chambers . at the base of the heart the termination of the superior vena cava is preserved entering the right atrium. Part of the inferior vena cava is also preserved on the inferior aspect of the right atrium . however , most of the vessel ;lumen and much of the anterior wall has been removed to expose the pectinate muscles of the right auricle and the fossa ovalis.