It connects the umbilical vein to that inferior Venecaiva and allows the blood to bypass the liver. So the ductus Venosis, that should be Venosis, the ductus Venosis, connects with the inferior Venecaa, which mixes the oxygenated and the deoxygenated blood and the mixed blood. The partially oxygenated blood is shown in light purple and eventually travels to the right atrium of the heart. So this should be ductus Venosis. Okay? Now let's move on to the right atrium of the heart, and let's see what takes place within our right atrium.