Vagina

View the Birth Control Options Slideshow

Medical Definition of Vagina

Vagina: The muscular canal that extends from the cervix to the outside of the body. It is usually 6 to 7 inches in length, and its walls are lined with mucous membrane. It includes two vaultlike structures: the anterior (front) vaginal fornix and the posterior (rear) vaginal fornix. The cervix protrudes slightly into the vagina, and through a tiny hole in the cervix (the os), sperm make their way toward the internal reproductive organs. The vagina also includes numerous tiny glands that make vaginal secretions.


Quick GuideWomen's Health: Nutrition and Health Care Reform

Women's Health: Nutrition and Health Care Reform

Subscribe to MedicineNet's Women's Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 5/13/2016

Health Solutions From Our Sponsors