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
[{'content': 'Ureteric constrictions are at all sites except - \nSelect and explain. \nA. Pelviureteric junction, B. Lesser pelvis, C. At ischial spine, D. Urinary bladder wall', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The ureter is constricted at 5 places:-\n\n\nAt the pelviureteric junction.\nAt the brim of the lesser pelvis.\nPoint of the crossing of the ureter by ductus deferens or broad ligament of the uterus.\nDuring its oblique passage through the bladder wall.\nAt its opening in the lateral angle of the trigone.', 'role': 'assistant'}]