How does fertilization occur?

How does fertilization occur? Just a decade ago, this could only be guessed, and now with the help of super technologies such processes can even be seen.

To begin, we will stop at the very start of the process - the maturation of eggs. They mature in the ovaries, which feed them with all the necessary substances. Thanks to them, the process of growth and maturation of eggs is stimulated . The follicle that surrounds the ovum does not lag behind - it also grows actively, and after reaching certain sizes it bursts and releases the egg into the abdominal cavity. At this time, the hormonal system signals the frog funnel of the fallopian tubes that the egg has already left and it's time to "return to the bosom." The funnel, like a vacuum cleaner, draws the egg into the fallopian tube by its vibrations. If for some reason the sperm and egg do not move into the uterus, but remain in the tube, then this pregnancy is called a tubal or ectopic pregnancy. This is an anomaly, in which the tube will burst with the growth of the zygote, so doctors remove such an embryo.

In the fallopian tube most often an ovum and meets with a sperm and the process of fertilization of the egg takes place. This process is very sensitive to time, as the egg lives about a day, and the sperm gets to the treasured zone in about six hours.

During this time, only the strongest, most viable spermatozoa get to it. On the way they encounter a significant number of obstacles. One of them is cervical mucus, which becomes more dense in consistency during the release of the egg. That is why women during ovulation feel an increase in the moisture of the vagina, a little more light clear secretions. At the tip of the sperm head are special substances that dissolve the wall of the egg. Before the fertilization takes place, these substances interact with each other, and the sperm opens the way inward. On video, this happens quite swiftly, as if a sperm is screwed into an egg with its spiral movements of the tail. This forms the early form of the embryo - the zygote. Already at this stage the spermatozoon, merging into one, introduces its 23 chromosomes of hereditary information, which together with the other chromosomes of the egg will predetermine the further development of the fetus. When the sperm penetrates into the egg, the membrane becomes denser, which prevents further penetration of spermatozoa.

After the fertilization takes place, the hormonal system reacts instantly to the changed situation. The body receives a signal that the conception has occurred. Is it possible to feel fertilization? No matter how hard it sounds, but in no way at the moment of conception does the body let know about it. Only after there are other stages, the woman's body will begin to feel the early signs of pregnancy.

If fertilization has occurred normally, then the zygote on the fallopian tube descends into the uterus, which under the action of hormones is already preparing to take the embryo. This takes about six days, and a couple of days the zygote "chooses a place" in the uterus. The endometrium has now become quite thick, loose - any place is ready to take a zygote. Most often it is attached to the anterior or posterior wall of the uterus, and a week later the zygote completely immerses in the uterine layer. All this time the fetus feeds on what supplied the egg follicle - useful nutrients - fats and proteins. After the fertilization and attachment to the uterus takes place, the placenta begins to form and the baby begins its nine-month intrauterine period .