14 Nov The hymen is a thin membrane of tissue that surrounds and narrows the vaginal opening. It may be torn or ruptured by sexual activity or by. What are the parts of the female external sexual anatomy? The vulva is the whole female genital package — your labia, clitoris, vaginal opening, and the. 28 Mar Only the opening of the vagina (introitus) can be seen from the outside. All female and male organs are developed from the same embryonic.