<prompt> Anterior relations of right ureter are all EXCEPTGonadal vesselsRoot of mesenteryIleocolic vesselsBifurcation of right common iliac aery  <response>: Abdominal aery divides into common iliac aery which divides into external and internal iliac aeries. Gonadal aeries crosses ureter anteriorly. Right colic aery a branch of superior mesentric aery crosses ureter anteriorly. Left colic aery branch of inferior mesentric aery crosses ureter anteriorly. But bifurcation of right common iliac aery crosses ureter posteriorly. 