human_reference_atlas part of Homo sapiens fundus of urinary bladder multicellular anatomical structure ureteral orifice ureteric orifice ureteral orifice FMA:77047 NCIT:C12337 ureteral meatus UBERON:0012303 ureterovesical orifice Wikipedia:Orifice_of_ureter ostium ureteris orifice of ureter ureteral orifice TODO - add relationship to junction ureteral opening orificium ureteris 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. Mercier's bar ureteric ostium SCTID:181415004 AS