Term Name:	vagina orifice
Synonyms:	introitus, introitus of vagina, opening of vagina, orifice of vagina, ostium vaginae, vagina opening, vaginal introitus, vaginal orifice
Definition:	The median slit located inferior and posterior to the external urethral orifice in the female; the exit for menstrual flow and birth and the entrance for the penis during sexual intercourse; the size and appearance of the vaginal orifice varies inversely with that of the hymen (G. membrane), a thin fold of mucous membrane that surrounds the vaginal orifice
Ontology:	Cell Ontology [UBERON:0012317]