About the transverse sinus of pericardium, which of the following descriptions are correct?
A.It is a part of the pericardial cavity. B.It is an oblique gap behind the heart. C.It is bounded anteriorly by the ascending aorta and pulmonary trunk. D.It is bounded posteriorly by the parietal pericardium. E.It is the lowest part of the pericardial cavity.正确答案AC
