This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Deoxigenated Blood is carried by all except: 
Select and explain. 
A. Pulmonary Aery, B. Umbilical Vein, C. Right ventricle, D. Umbilical A
B: Umbilical Vein
Answer: B: Umbilical Vein 
Explanation: B i.e. Umbilical Vein - Umblical vein and pulmonary veins carry oxygenated bloodQ. Whereas umbilical and pulmonary aeries carry deoxygenated bloodQ. - Deoxygenated blood (with 62% 02 saturation) leave umbilical aeries to be oxygenated at placenta whereas, umbilical veins carry oxygenated blood from the placenta with Hb02 saturation of - 80% (as compared to 98% saturation in adults aerial circulation). - Right ventricle pump deoxygenated blood through pulmonary aery into pulmonary capillaries where it is oxygenated. And then oxygenated blood is carried through pulmonary veins to left atrium.