Depending on recipe and cooking method it may be either a flaky potato pie, or a heavy potato pudding.
Ductus arteriosus: A short vessel through which blood headed from the heart via the pulmonary artery to the lungs is shunted before birth. This blood is shunted away from the lungs and returned to the aorta. When the shunt is open, it is said to be patent.
The ductus arteriosis (DA) is a normal part of the fetal circulation. It is a shunt (or a short vessel) that connects the pulmonary artery and descending aorta. Functions of DA include: As part of the normal physiology, the DA starts closing once the baby is born and the lungs inflate, establishing breathing.