Sunday, April 20, 2014

You need to know the knowledge about pregnant

Know your body



The uterus is an inverted pear-shaped. It is located in the pelvic cavity central, between the bladder and rectum, the bottom connection vagina, on both sides of the fallopian tubes and ovaries. Adult female uterus 7 ~ 8 cm long, 4 ~ 5 cm wide, 2 ~ 3 cm thick, volume have adult fist size. Uterine cavity covered with mucous membrane, called the endometrium, from puberty to menopause, endometrial influenced by ovarian hormones, the cyclical changes. There is no fertilization, hyperplasia of endometrium in every time the reproductive cycle of natural, and then fall off formation period. During sex, the uterus is only sperm fallopian tube channel. In case of fertilization, fertilization of the egg will by the fallopian tube into the uterus, implant in the womb of membrane, and use the endometrial lining of the nutrients as nutrition of early embryonic development, and become the scene of embryonic development, growth.



The vagina



Vagina is composed of muscle and mucous membrane of the lining of the muscular conduits, stretching, located in the ventral bladder, urethra and dorsal between the rectum and the upper end of the cervix, located in the vaginal vestibule bottom openings.



Sexual maturity period of women, vaginal length is 7 ~ 8 cm, the inner wall of the vagina mucous membrane surface similar internal membrane, can secrete mucus, suppress disease



Infected bacteria breeding, avoid the vagina and uterus. The vagina is highly elastic, flexible organ. Vaginal wall surface is covered with a layer of mucous membrane of elasticity is very big, the mucosa to form many folds, before and after the usual mucosa are connected into an organic whole, the uterus secretion the leucorrhea or menstrual blood through vaginal discharge in vitro. When sexual intercourse, vaginal opening nature; Birth, born with fetal left matrix, the vagina will open as much as possible to give the fetus through.



The fallopian tubes



Located at both sides of the uterus tube and 10 ~ 12 cm long, end connections within the uterus, is conveying eggs in the shape of a pipe bend like horn.



Fallopian tube with carrying sperm and eggs intake and take the important role of the fertilized egg to the uterine cavity. Fallopian tube length from inside to outside can be divided into four sections. In a period of the uterine wall of tubal uterine department, by the mouth of the uterus to the uterine cavity.



Tubal isthmus, short and narrow, is where the contraceptive tubal ligation to achieve. Fallopian tube bending down the ovarian front row, upper bent back to the ovary, fairly thick long, accounted for about two-thirds of the length of fallopian tubes, is the place where the egg is fertilized egg. If the fertilized egg failed to move into the uterus due to tubal pathological changes, and development within the fallopian tubes, ectopic pregnancy is common say again. Fallopian tube swollen section at the end of fallopian tube funnel, after Curved covering most part of the ovary. In fallopian tube mouth is convex shape of oviduct umbrella, abdominal cavity by fluff, egg slowly to the uterus.



ovary



Is ovarian and secretion of female hormone organs that produce eggs. Have two ovaries, size as grapes, oval, respectively located on both sides of the uterus. Two ovaries are connected with one end of the inherent ligament, and the other end is connected to the uterus. Ovary size, shape and change along with the age, before sexual maturity is small, smooth surface; Sexual maturity period ovary, the largest female adult ovary weight 5 ~ 8 g; Many times after ovulation, the surface left many scar; A perfect After the shrunken oaries become smaller, harden.



As a safeguard human reproduction represented the vital organs, ovaries are small, but the energy giant, is both a place of eggs produced, can secrete a variety of hormones. The ovaries to produce eggs from embryonic period have demonstrated the function, and at the time of birth, with 100000 ~ 500000 eggs came to this world, each immature eggs are surrounded by a thin layer organization, called follicles. However, the number of eggs vary from person to person, and will gradually reduce their development. Under normal circumstances, only hundreds of eggs that mature in one's life, the vast majority degraded in the process of development of death. And these mature eggs, only special lucky that fertilization embryo bred, develop into a baby appeared in front of us. Before menopause, two ovarian oviposit alternately. Ovulation usually occurs in about 14 days before menstruation, is oviposit period. Such as after ovulation fertilization, then 14 days will be to menstruation. Usually women will no longer be oviposit around 45, 50 s ovary with menstruation stop tends to shrink.