Which of the following vein has least amount of urea
Options
(a) Pulmonary vein
(b) Hepatic portal vein
(c) Hepatic vein
(d) Renal vein
Correct Answer:
Renal vein
Explanation:
Least concentration of urea is found in renal vein. This is because urea is excreted through urine formed in Kidney.