FORMATION pregnancy (pregnancy FORMATION)

WHAT IS REQUIRED FOR THE FORMATION OF PREGNANCY?
The normal number of sperm production in men and property,
clear and adequate function of the sperm ducts,
Women in egg production,
Openness of the female egg conductive tube,
Ovulation days of sexual intercourse,
and the meeting of sperm and egg fertilization,
proper function of the uterus to receive a fertilized egg,
The fertilized eggs, embryos and fetuses settle in the womb (fetal) version of the pickup,
The birth of the baby completes its development.

SPERM PRODUCTION
Sperm are produced in the testes of the male reproductive cells. Unlike women continue production until the end of life starts at puberty. Likewise, once a month in the female ovulation cycle (ovulation) and one (rarely several) egg cell (ovum) despite the occurrence of sperm production in men is continuous.
To produce sperm in men's sperm eggs at birth parent cells (spermatogonia) is located. These cells, they wait quietly until puberty. hormones secreted by the brain in adolescence (FSH, LH) increases with the main sperm cells in the egg starts dividing. The resulting cells are also various new division, growth and differentiation stage of sperm becomes passing through.
about 50-200 thousand sperm produced in the testes minutes. Epididymal sperm in the testicles are formed in the channel name entered into the duct system. Here the sperm continue to mature, they arrived at the tail of the epididymis and would have gained the ability to move independently. The advent of ripe complete the development of a sperm cell takes about 70 days.
Sperm, 5-7 microns in length, in the 3-4 micron, pear-shaped head, the tail portion is composed of 2 to 3 microns in length and 40-45 microns long neck.
The Out Out Sperm
When the sexual stimulation of sperm cells, the secretion of prostate and seminal fluid sacs, begin to accumulate in the back of the urinary tract and the exhaust duct. for accumulation, took part at the top and bottom of the prostate in the urinary bladder side of the canal system within the prostate sphincter (sphincter mechanism) is kept closed by. Thus the accumulated fluid escapes out of the bladder and urinary tract. The accumulated liquid semen given name.
When it reaches the peak of sexual arousal, ejaculation reflex called the event starts. internal sphincter of the bladder side closed, while the external sphincter opens. Simultaneously, on the muscle of the urethra and the discharge channel are fast and rhythmic contractions. With these contractions semen, urine is expelled from the hole in the spout style with a few moves.

EGG CELL PRODUCTION
Mother tissue on either side of the backbone of the unborn fetus, and the fetal chromosome structure starts to change as female ovaries. Differentiating ovarian eggs in the main cells in the 6th week of pregnancy (oogonia) is evident. 20. The main egg cells divide and multiply until next week. Then, 46 chromosomes (genes), these cells are divided into phases to halve the number of chromosomes. This division is not completed, consisting of between 7 and 9 months of pregnancy. These cells receive the remaining cleavage-stage oocytes name. Around oocytes are surrounded by a layer of cells, they start quietly waiting in the ovaries. The number of these are specific and then change. So the ovaries of women, has a number of reproductive cells unlike men.
From birth until puberty, the oocytes in the ovary waiting unchanged, they will become mature egg cells develop after puberty. However, for various reasons none of them, while 99% only develop about 1% is converted into the egg cell.

Ovulation (Ovulation)
Female period of about 14 days in the brain pituitary (brain which secretes hormones in the central part of) the amount of the LH hormone secreted by the area suddenly increases. by cracking the egg cell membrane subsequently mature follicle is released. This event is given ovulation name.

Ovarian, during the development of the egg cell is produced from the hormones estrogen and progesterone. The first period of the previous period of ovulation estrogen, ovulation after the second period of the tissues in the uterus hormone called progesterone, which allows it to become suitable for the nesting of the fertilized egg. Otherwise, the fertilized egg into the uterus will nest and will be low.