Left renal vein crosses the Aorta:
a. Anteriorly, above the superior mesenteric artery
b. Anteriorly, below the superior mesenteric artery
c. Posteriorly, at the level of superior mesenteric artery
d. Anteriorly, below the inferior mesenteric artery
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The Correct option is B
Explanation with High Yield Facts :
Left renal vein crosses in front of the aorta from right to left towards the left kidney.
Additional information:
- The vein lies below the superior mesenteric artery (L-1 vertebral level) and above the renal artery (lies between L-1 & L-2 vertebra)
- Because the inferior vena cava is on the right side of the body, the left renal vein is generally the longer of the two.
- Now, because the inferior vena cava is not laterally symmetrical, the left renal vein often receives the following veins:
- left inferior phrenic vein
- left suprarenal vein
- left gonadal vein (left testicular vein in males, left ovarian vein in females)
- left 2nd lumbar vein
- This is in contrast to the right side of the body, where these veins drain directly into the IVC.
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