NCIt synonyms : Orifice of the Ureter; Ureteral Opening;
NCIt related terms : Uteric Orifice; ureteral orifice;
NCIt definition : The opening of the ureter in the bladder that is situated at the lateral angle of
the trigone.;
Alternative definition : UBERON: The slit-like opening of either ureter into the bladder; normally, the two
ureteral orifices are placed at the posterolateral angles of the urinary bladder trigone
while the internal urethral orifice is placed at its anteroinferior angle (apex);
wide gaping usually indicates vesicoureteral reflux.;