Also a picture showing the tree with the bird house on it. (not the best picture of my flowers cause the finch destroyed the Heliopsis but it was a fun thing to watch) By the way, it does face southeast, guess we got it right without knowing what we were doing. Don't give up on the bluebirds. Good luck.
i. are tributaries of the inferior vena cava. 1. left renal vein passes anterior to the aorta immediately inferior to the origin of the superior mesenteric artery. - left inferior phrenic, left suprarenal and left gonadal empty into the left renal.
Both circumaortic and retroaortic left renal veins are. the result of persistence of the dorsal limb of the embry-. onic left renal vein and of the dorsal arch of the renal col-. lar (intersupracardinal anastomosis). However, in. retroaortic left renal vein the ventral arch regresses so. that a single renal vein passes posterior to the aorta.