What lies anterior to transverse sinus
Transverse sinus is a horizontal gap between the aerial and venous ends of the hea tube.It is bounded anteriorly by the ascending aoa and pulmonary trunk,and posteriorly by the superior venacava and inferiorly by the left atrium.On each side it opens into the general pericardial cavity. <img src=" /> REF:B D CHAURASIA'S HUMAN ANATOMY,VOLUME-1,FIFTH EDITION Page no 242
Aoa
Pulmonary aery
IVC
SVC
Thorax