Which blood vessel carries the least amount of urea?
Hepatic portal vein
Renal artery
Pulmonary vein
Renal vein
The renal vein carries blood away from the heart and so carries the least amount of urea formed in the blood.
The blood vessel which carries oxygenated blood from the lungs to the heart is : (a) main artery (b) pulmonary artery (c) main vein (d) pulmonary vein
Which blood vessel does not carry any carbon dioxide ? (a) pulmonary artery (b) vena cava (c) hepatic vein (d) pulmonary vein
Which vein brings clean blood from the lungs into the heart ? (a) renal vein (b) pulmonary vein (c) vena cava (d) hepatic vein