Term Name:	internal urethral orifice
Synonyms:	internal urethral ostium, internal urinary meatus, orificium urethrae internum, ostium orificium internum, ostium urethrae internum
Definition:	the usually crescent-shaped opening of the urinary bladder into the urethra, placed at the anteroinferior angle (apex) of the urinary bladder trigone
Ontology:	Uberon Ontology [UBERON:0012242]