The narrowest pa of the ureter is at the:
D i.e. Uretero - vesicle junctionAt the level of ischial spine ureter changes its direction from down-backward to forward - medially but there is no constriction. The narrowest pa of ureter is uretero- vesicle junctions
Uretero - pelvic junction
Hiac vessel crossing
Pelvic ureter
Uretero - vesicle junction