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. [ MP:0011783 http://en.wikipedia.org/wiki/Orifice_of_ureter ]
Synonyms: Mercier's bar ureteric orifice ureteric ostium ureteral opening ostium ureteris orificium ureteris orifice of ureter ureteral meatus ureterovesical orifice
Term information
- NCIT:C12337
- FMA:77047
- SCTID:181415004
- Wikipedia:Orifice_of_ureter
pheno_slim, human_reference_atlas