Assertion: ureter's orifice | /r/HasProperty | single
Facets:
Source sentences:
text: In the former type, the two unilateral ureters drain into the bladder at different orifices, forming two vesico‐ureteric junctions, whereas in the latter type they join and then drain at a single orifice.
text: When splitting of the ureteric duct is a late event, a bifid ureter forms with two renal pelves, which drain into separate ureters that fuse to terminate in a single vesicoureteral orifice