The vagina: anatomy and function of the female genital organ
How is the vagina made?
Often confused with the vulva, which is the external part of the genital system, the vagina is internal. Hollow organ, it begins at the height of the vulva and the labia minora, and ends at the neck of the uterus. On average, it measures 8 cm, is narrower towards the vulva and widens towards the bottom. The vagina is closed, since its two walls are very close. Only a very narrow orifice, at the entrance of the uterus, allows the menstrual flow or sperm to open a passage. Moreover, it is not vertical, but rather has a folded shape, oblique in the bottom and almost horizontal at the top.
The walls are very elastic and allow penetration by the penis, regardless of its size. But it is during childbirth that its elasticity reaches its maximum. After all, the vagina is surrounded by many muscles. There is also a mucosa rich in blood vessels but poor in nerve endings (except in the vulva). Thus, 2/3 of the vagina are not very sensitive to pain.
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The vagina and the hymen
The hymen separates the vagina from the vulva. Symbol of virginity, it is a small fold of mucosa of variable shape and thickness but, generally, less than a millimeter thick. It may happen that it can break when practicing certain types of sports, or with the use of tampons. In general, however, it breaks down during the first sexual intercourse, which explains why some women experience blood loss.
The vaginal flora
This term indicates the bacterial flora located in the liquid that covers the walls of the vagina. These bacteria play an essential protective role. They maintain an acidic pH inside the vagina, which prevents the development of diseases such as mycoses. Cleaning the inside of the vagina can kill these protective bacteria.
The vagina during sexual intercourse
During sexual intercourse, the vagina is supplied with blood, and produces secretions due to arousal. As orgasm approaches, the vagina decreases in volume by about 30%. The muscles of the vulva contract. Some women manage to contract them voluntarily, giving pleasure to their partner. The penis is like "sucked" into the vagina. These contractions also occur at the level of the uterus, which will facilitate the passage of spermatozoa.
Vaginal orgasm
Clitoral or vaginal? The debate is as old as the world. Today, however, it seems outdated, as it is now known that both the vagina and the clitoris play a role in female orgasm. The clitoris is the starting point of orgasm, which is then produced in the vagina. Thus, a clitoral orgasm is always also vaginal.
What is a pure vaginal orgasm? It would only be caused by stimulation of the vagina and not the clitoris. As for the famous G-spot, which is said to lead to seventh heaven, it is located about 6 cm from the vulva, towards the front of the vagina. Some positions allow greater pressure of the penis against this point G. In the event of a more or less intense orgasm, a clear liquid can be expelled from the urethra, not from the vagina. This is what is called female ejaculation.
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