Renal collar which surrounds the aorta has its two limbs split by -: (A) Left renal vein, (B) Left renal artery, (C) Isthumus of horseshoe kidney, (D) All of the above
Answer is A. • The main renal vein divides and sends one limb anterior and another limb posterior to aorta to reach the IVC.
• Formed on the left side and represents persistence of the embryonic state.