The pericardium心包膜 R. common arotid a L comnmon aroud a L. subclavian a atria Parietal pericardium(cut) Cut edges of serous Visceral pericardium(cut)Sup. wean caua Trans Sinus R Pulmonary V Pulmonary Ventricles Oblique Sinus Pericardial fluid DIAPHRAGM Pericardial sacThe Pericardium 心包膜 R. Pulmonary V L pulmonary V Trans Sinus Oblique Sinus