Tags: Anatomical Structure.
The vagina is a fibromuscular elastic tubular tract (passage) which is a sex organ and mainly functions for the facilitation of sexual intercourse and childbirth. In mammals (especially primates) menstruation which is the periodic discharge of blood and mucosal tissue (the endometrium) from the uterus and vagina is another primary function of the vagina and usually signals fertility. The location and size of the vagina varies among species and may vary in size within the same species.
