EXHIBIT ID: OB_C_0603

The Ductus Arteriosus

The Ductus Arteriosus

Comparison of the ductus arteriosus and its role in circulation in the developing fetus versus newborn circulation.The ductus arteriosus is a small vessel present in the developing fetus that connects the pulmonary artery with the aorta. Before birth, this vessel allows blood to bypass the fetus's non-functioning lungs.