The left renal vein and the right renal vein make up the renal veins that drain the kidney. They begin at the hilum of the kidney where three to six tributaries unite. The kidney is connected to the inferior vena cava via the renal veins. The renal arteries are behind the veins, which is unlike most other veins in the abdomen that rest beside of behind the arteries.
The left renal vein joins the Continue Scrolling To Read More Below...