Relation of renal vein with aorta is -: (A) Anterior , above Superior mesenteric artery, (B) Anterior, below Superior mesenteric artery, (C) Anterior, below Inferior mesenteric artery, (D) Posterior, below Superior mesenteric artery
Answer is B. Left renal vein passes behind and below the superior mesenteric artery, crossing in front of the aorta.