All of the following structures lie in the relation to the left ureter except:
(A) Mesentery of sigmoid colon (B) Bifurcation of common iliac aery (C) Quadratus lumborum (D) Gonadal vessels
(C) Ans: C. Quadratus lumborum(Ref Grays 41/e p1251, 40/e p1239)Left ureter is related posteriorly to psoas major muscle (not quadratus lumborum).Relations of Right UreterAnterior:Duodenum,Terminal pa of the ileum,Right colic vessels,Iliocolic vessels,Right testicular or ovarian vessels, and theRoot of the mesentery.Posterior:Right psoas muscle,Bifurcation of the right common iliac aeryRelations of Left UreterAnterior:Sigmoid colon,Sigmoid mesocolon,Left colic vessels,Left testicular or ovarian vesselsPosterior:Left psoas muscle,Bifurcation of left common iliac aery