Fetal Circulation
Naomi Rumrillにより

1. Ductus arteriosus
1.1. Connects pulmonary artery to the aorta
1.1.1. Blood is shunted around the fetal lungs
2. Ductus venosus
2.1. Carries oxygenated blood from the umbulical vein to the inferior vena cava
2.1.1. Bypasses the liver