<prompt> Ureteric constrictions are at all sites EXCEPT:Pelvi-ureteric junctionLesser pelvisIschial spineUrinary bladder wall  <response>: Lesser pelvis is a vague option and does not specify a precise location. Ureter has five constrictions in its course: Pelvi-ureteric junction tip of transverse process of veebra, radiologically Pelvic brim sacro-iliac joint radiologically At vas deferens At Ureterovesical junction ischial spine, radiologically Opening at trigone. 