The vagina is the muscular tube which provides the passageway from the outside of the body to the uterus womb. The vagina has the ability to change in size to accommodate sexual intercourse and provide the "birth canal" through which a baby can be delivered. The vagina is composed of tissues, fibers, muscles, and nerves. The outermost mucosal tissue is underpinned by a layer of connective tissue which work together to produce mucus for vaginal lubrication. The vagina is positioned between the vulva the external genitalia and the cervix the narrow, neck-like passage which separates the vagina from the uterus. The general structure of the vagina is as follows:. The length of the vagina can vary in women of child-bearing age from between 2.
Vaginal rugae are structures of the vagina that are transverse ridges formed out of the supporting tissues and vaginal epithelium in females. The rugae contribute to the resiliency and elasticity of the vagina and its ability to distend and return to its previous state. The shape and structure of the rugae are supported and maintained by the lamina propria of the vagina and the anterior and posterior rugae. The anterior and posterior columnae rugae are transverse vaginal support structures between which the transverse rugae exist.
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