The Ductus Arteriosus Connects the Pulmonary Artery with the Descending

Question

The ductus arteriosus connects the pulmonary artery with the descending aorta.

Accepted Answer

The ductus arteriosus is a fetal blood vessel that connects the pulmonary artery with the descending aorta, allowing most of the blood to bypass the lungs before birth. After birth, the ductus normally closes within a few days to a week, becoming the ligamentum arteriosum.