How sperm is formed?
The sperm begins to form in puberty boys, reaching its maximum in adulthood. With age the formation of sperm decreases. Ejaculate contains in its structure many chemical elements and compounds, among which ascorbic acid and citric acid, choline, cholesterol, fructose, Inositol, urea, spermine, deoxyribonucleic acid, pyrimidine, hyaluronic acid and many others.
As noted above, semen is composed of sperm and seminal fluid. The sperm in seed healthy men during a single ejaculation contains in an amount of from 70 to 80 million constitute only 3% of the total ejaculate. It is an average figure. The remaining 97% are the secret of the prostate gland and seminal vesicles fluid. Scientists have found that in the first batches of the final ejaculate contains far more sperm than subsequent ones, particularly the latter.
Interestingly, the composition of the seminal plasma is complex. The fact that it contains significant amount of proteins, carbohydrates and even fats. In addition, there are plasma enzymes, hormones and other substances.
Speaking about the physical properties of the newly formed sperm, it should be noted that this viscous-sticky mucoid heterogeneous opaque liquid. It smells like raw chestnut. There are people who claim that semen has a slight odor of chlorine. The taste of male ejaculate depends on the nature of the power of its owner: the taste can be salty-sweet, bitter and even sour. Scientists have noted that frequent ejaculation make sperm taste less sweet with the strengthening of bitterness. Fresh ejaculate after a while (from 20 seconds to 1-2 minutes) liquefies, is homogeneous and less viscous, but more watery and transparent.
In what amounts allocated sperm?
The average number of sperm released during ejaculation, is considered to be 3 grams (a teaspoon). However, this number can range from 2 to 6 grams. Each new day abstinence from sex or Masturbation increases sperm count 0.4 grams. Scientists have estimated that during a single ejaculation, a man produces about 1% of all the accumulated ejaculate. This explains the ability of some men to have multiple ejaculations in a few hours: their high potency allows you to have from 4 to 6 ejaculations in a short period of time.
Sperm is small and agile, the male cells. One male sperm consists of a head, neck, calf and flagellum (tail).
In addition, the number of male sperm may vary depending on the health status of its owner, from the amount of alcohol consumed and their liquid, from his age, etc. Scientists have made an interim conclusion, based on practical cases from the life: a large amount of sperm does not mean its a higher fertilizing capacity. Sometimes it is even detrimental to the fetus, because it is associated with private miscarriages in women.
Advice 2: As the sperm reach the egg
All know, resulting in the conception of a child, but few interested in the internal flow of fertility process. What happens to sperm after being hit in the vagina? How they manage to get to the destination and the speed with which they do it? The answers to these questions it is desirable to know.
The path to the egg
After ejaculation of men in women's vagina goes from 300 to 500 million sperm, most of which dies in the very beginning. To the fallopian tube, which contains a ready for fertilization egg rush only the most motile and active sperm, which need to overcome the cervix to pass between the endometrial folds, to find the tube with the egg and overtake more nimble relatives. In General, this "race with obstacles" is from two to five hours.
Most often the sacrament of fertilization occurs in the middle third of the women's fallopian tubes.
Reaching the egg, the sperm in an amount of from 400 to 500 trying to get inside her with the help of enzymes located in the head of each sperm and destroying the egg shell. When one single sperm manages to penetrate the egg, its shell instantly turns into inaccessible fortress for the remainder of the outside of the seed. The winner loses the flagellum, helped him to move through the reproductive system, and merges the core with the little baby egg chromosomes of the nucleus, resulting in the first cell of the embryo – the zygote.
Changes in the body
After penetration of the sperm into the egg the whole body is "notified" about the incident fertilization and begins to rebuild to save the beginning of the pregnancy. It begins to occur other chemical reactions, uterus redistributes its innervation, and immunity drops to a certain level that the body did not reject the fetus, mistaking him for an alien growth.
Due to the unique genetic code, the zygote determines the sex and character of the unborn child, and his ear shape and eye color.
The fertilized egg descends into the uterus until the seventh day after fertilization and begins to look for a place to attach. Finding a suitable site, the embryo is implanted in the uterine endometrium and growing rapidly, forming new blood vessels, which later will form the placenta and will "feed" the unborn child until the birth. The body of the new man is formed from the tiny knot, umbilical cord and amniotic bubble of superficial cells. After forming all elements of the fetus, its development depends solely on the physical and psychological state of the mother during pregnancy.