The Female Body The vagina is a thin walled-tube, 8 to 10 cm long. It lies between the bladder & the rectum & extends from the cervix to the body exterior. The urethra is embedded in its anterior wall. Often called the birth canal, the vagina provides a passageway for delivery of an infant & for menstrual flow. Since it receives the penis (& semen) during sexual intercourse, it is the female organ of copulation. The highly distensible wall of the vagina wall consists of three coats: An outer fibroelastic adventitia. A smooth muscularis. A mucosa marked by transverse ridges or rugae, which stimulate the penis during intercourse. The epithelium of the mucosa is a stratified squamous epithelium adapted to stand up to friction. Certain of the mucosal cells act as antigen-presenting cells & are thought the route of HIV transmission from an infect....

Number Of Pages: 7

Number Of Words: 1686

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