Ascent of horse shoe shaped kidney is prevented by
Superior mesenteric aery
Inferior mesenteric aery
Superior mesenteric vein
Inferior mesenteric vein
Initialy in IUL(intrauterine life) kidneys are present in iliac fossa , Kidney has to reach the level of renal aery which is prevented by inferior mesenteric aery which is a branch of abdominal aoa. Fusion of right and left kidney occurs to form a U shaped structure at the level below inferior mesenteric aery.
GIT 1