This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Which among the following is NOT related to left ureter: 
Select and explain. 
A. Quadratus lumborum, B. Psoas major, C. Left gonadal vessels, D. External iliac aery
A: Quadratus lumborum
Answer: A: Quadratus lumborum 
Explanation: Relations of ureter: Posterior relations (common to both sides):Psoas major muscleGenito femoral nerveThe beginning of the external iliac aery and the adjacent veinAnterior relations of the left ureter:Upper left colic and sigmoidal vessels cross itGonadal vesselsPelvic mesocolon and pelvic colon overlap near the pelvic brimAnterior relations of right ureter:Descending pa of duodenumRight colic, gonadal and ileocolic vesselsRoot of mesentery of small intestine, with superior mesenteric vesselsTerminal ileum