The<unk>  are two in number:
the right ends in the inferior vena cava.
the left ends in the left renal or left inferior phrenic<unk> 
They receive blood from the adrenal glands and will sometimes form anastomoses with the inferior phrenic<unk> .
Suprarenal veins
Common iliac vein
Circle of Willis
Testicular vein
Common iliac artery
Splenic vein
Internal iliac artery
Retroaortic left renal vein