In mammals , the vagina is the elastic, muscular part of the female genital tract. In humans, it extends from the vestibule to the cervix. The outer vaginal opening is normally partly covered by a thin layer of mucosal tissue called the hymen. At the deep end, the cervix neck of the uterus bulges into the vagina. The vagina allows for sexual intercourse and birth.

2. Women moan in the middle of the night.


1. The clitoris is all over the place.
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The vulva plural: vulvas or vulvae; derived from Latin for wrapper or covering consists of the external female sex organs. The vulva includes the mons pubis or mons veneris , labia majora , labia minora , clitoris , vestibular bulbs , vulval vestibule , urinary meatus , the vaginal opening , hymen , and Bartholin's and Skene's vestibular glands. The urinary meatus is also included as it opens into the vulval vestibule. Other features of the vulva include the pudendal cleft, sebaceous glands , the urogenital triangle anterior part of the perineum , and pubic hair. The vulva includes the entrance to the vagina , which leads to the uterus , and provides a double layer of protection for this by the folds of the outer and inner labia. Pelvic floor muscles support the structures of the vulva. Other muscles of the urogenital triangle also give support. Blood supply to the vulva comes from the three pudendal arteries. The internal pudendal veins give drainage.
That may be because, as with many things related to the vagina, much is misunderstood or left up to myth and urban legend. The average vaginal canal is 3 to 6 inches long, or about the length of your hand. For example, if you become sexually aroused, your vaginal canal grows longer. This allows your cervix and uterus to lift up and away from the canal so that penetration will be more comfortable. The vaginal canal undergoes many changes, and no two are same. All of this is normal. And unless you feel any pain or discomfort , everything is likely fine. It could be caused by an underlying condition that makes penetration uncomfortable. You may think uncomfortable penetration is only a side effect from sex with someone who has a penis.