Yes goats do eat some weeds but the nutritional value of many weeds is very high. My studies of the nutritional value of thistles and blackberries (Table 1), for example, have shown that the nutritional value of these weeds can be as high or higher than the nutritional value of pasture.
The function of the umbilical vein is to deliver oxygenated blood from the placenta to the fetus. From the placenta, the umbilical vein courses through the liver via th â¦ e ductus venosus (fetal shunt), connecting then to the inferior vena cava. 11 people found this useful.
The ductus arteriosus (DA) is also visible, between the pulmonary trunk (lower purple vessel with an arrow) and the aortic arch (upper purple vessel). Fetal liver circulation. The umbilical vein (UV) carries oxygenated blood from the placenta to the liver.Some of the blood mixes with blood in the hepatic portal vein (HPV) and enters the liver, but a significant minority passes through the ductus venosus (DV) which empties into the inferior vena cava (IVC) and carrys blood to the heart.etal circulation model. Look for: umbilical arteries and vein, ductus venosus, ductus arteriosus, foramen ovale. This model is best studied in lab, using the step by step circulation in the textbook or lab manual as a guide.