Female Intercourse Anatomy

The female sex organs are composed partly of internal organs, the uterus, ovaries. Fallopian tubes which are protected within the abdominal cavity and kept away from direct contact with the male, and partly of external organs such as the vagina and public region, which are exposed to sexual contact. Ovaries and Production of ova :- The female ovaries, homologous to the testicles in the male, lie on both sides of the uterus in the abdominal cavity. The female at birth stores thousands of immature ova in the ovaries. In their growth and maturity, ova differ vastly from the male spermatozoa. As the female reaches puberty, a single ovum matures and is discharged alternately from the two ovaries at an interval of 28 to 32 days.

The ovary secretes two kinds of hormones : estrone and progesterone. Estrone, mainly secreted prior to orulation, promotes the maturing and growth of the uterus and acteal gland as well as the development of the mucous membrane lining the uterus. Progesterone, added following ovulation restrains the oversensitive uterus lining. Therefore, during pregnancy particularly until the placenta forms a lage amount of progesterone is secreted continuously as a natural means of preventing miscarriage.

Fallopian Tubes and Fertilization :- The two Fallopian tubes are long, narrow ducts projecting from the upper ends of the uterus and embracing the two ovaries which lie under the tubes and on both sides of the ovary. When ovulation approaches, the Fallopian tube with a suction pump mechanism shaped like the sea anemone at its end, waits near the ovary and draws in the ejected ovum. By means of the cilialining the tube's inside wall and swaying toward the uterus, the Fallopian tube sends the ovum to the uterus cavity.

The ovum unites with the spermatozoon and fertilizes normally near the expanded area midway in the Fallopian tube. In the female body the ejaculated spermatozoa take at least eight hours to reach the swollen part of the Fallopian tube. The outerr wall of the ovum is agglutinated with hyaluronic acid. When the acid is dissolved by hyaluronitase contained in the sperm, the ovum is prepared to unite with a spermatozoon, which pierces a hole and enters into the ovum.

Its head continues its process of development called cell-division while passing through the tube. Approximately five days later it reaches the uterus and after another five days settles there. Capable of remaining alive for not more than a day after ovulation, the ovum passing beyond the tube's mid-point disintegorates and can no longer be fertilized.

Uterus and Menstruation :- The uterus is muscular structure shaped like an inverted pear about the size of a small egg and is lined with mucous membrane on the inside. The neck of the uterus at its lower end protrudes into the vagina. The upper portion is together with the ovaries and the Fallopian tubes, lodged in the abdominal cavity and is protected by the pelvis. The mucous membrane in the uterus is characterized by a thin layer of fundus adhered to the muscular wall and overlaid with the functional zone.

Upon contact with estrone and progesterone secreted from the ovaries, the functional zone starts growing immediately after menstruation. By the time the fertilized ovum enters into the uterus, its mucous membrane has thickened and is ready to receive and nourish the ovum. If there is no fertilized ovum to settle in the uterus, then all the preparation goes to waste.

After a while estrone secretion decreases temporarily, causing excoriation of the layer. This phenomenon is known as menstruation. At the end of menstruation the uterus lining repeats the cycle of growing and thickening, stimulated by estrone and later by progestrone.

Labia Majoro and Labia Minora :- The female external sex organs are closed from the right and left by the labia majoria (large lips) covered with a thick growth of public hair. The development of the labia minora (lesser lips) and clitoris is not necessarily proportionate to sexual experience in the broad sense of the term - that is, including masturbation as well as intercourse - but depends largely on individual differencdes. With a proper protuberance, the labia majora, together with the labia minora, participate in stimulating the penis in coitus, and at the same time, the lips themselves are stimulated by the penis. The smaller lips do not have hair on them and the left and right lips are not always balanced. Their size and color do not necessarily increase with sexual experience.

 

 

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