Vagina

The vagina is a muscular passage which forms a part of the female sex organs and which connects the neck of the uterus (called the "cervix") with the external genitals. The vagina, which is approximately two and one-half to four inches long, has muscular walls which are supplied with numerous blood vessels. These walls become erect when a woman is aroused as extra blood is pumped into these vessels. The vagina has three functions: as a receptacle for the penis during love-making; as a outlet for blood during menstruation; and as a passageway for the baby to pass through at birth. According to The Guiness Book of World Records, a Russian peasant woman who lived in the 18th Century holds the record for the most children born to one mother. She had sixty-nine children within forty years. She produced sixteen pairs of twins, seven sets of triplets, and four sets of quadruplets!