attaches_to constitutional_part_of Ascending aorta Central tendon Membrane organ Pulmonary trunk segment of pericardial sac Superior vena caval segment pericardial sac Inferior vena caval segment of pericardial sac Pericardial sac proper Fibrous pericardium FMA:9586 Fibrous portion of pericardium Membrane organ which is attached to the pericardial sac proper and the central tendon of diaphragm and is continuous with the pretracheal fascia. fma Pericardium