After ovulation, the follicle cells remaining in the ovary develops into a structure called the cor

Every month, the reproductive system in women of childbearing age have a very complex changes during the menstrual cycle. Estrogen and progesterone are two important hormones that ensure that the egg is released by the ovary in the middle of each cycle. Ovulation depends on this production and other hormones at the right time and in the correct amounts.
The structure in which the female ovaries called follicles developing eggs. Each follicle contains an immature egg surrounded by hundreds of other cells, called follicular cells. When a woman gets menstruation, a new cycle begins pinched nerve with the production of two pituitary hormones, called FSH and LH. These hormones stimulate the follicles to grow and cause the follicle cells to make estrogen and progesterone, the two primary female sex hormones. Chemically, both estrogen and progesterone are steroids, such as fat molecules that bind to receptors in the cell nucleus and influence their behavior. before Ovulation
Part of the cycle that leads to ovulation is called the follicular phase because it is characterized by the growth of ovarian follicles. This phase lasts about 14 days and ends before ovulation. Pituitary hormones FSH stimulates follicle cells to make estrogen in increasing numbers during this phase, and also to make the liquid form, the central fluid-filled cavity in the follicles. In follicles, estrogen stimulates the follicle cells to divide, eventually causing the follicle increased greatly in size when ovulation approaches. Due to increased estrogen levels in the blood of women, the hormone has a positive effect on the pituitary, which began to respond by releasing a small amount of LH. Although LH levels remained relatively low during this phase, but stimulate the follicle cells to make small amounts of progesterone, which becomes important at the time of ovulation. Ovulation
When a woman's menstrual cycle approaching mid-cycle, usually on day 13 or day 14, high levels of estrogen in the blood stimulates a sudden and large increase in the output of pituitary LH. Called the LH surge, this activity causes the dominant follicle ririskiky protruding from the surface of the ovaries in preparation for ovulation. Progesterone in follicular also help trigger ovulation after the LH surge occurs, although how exactly this is not fully understood. The study, published in August 2012 in Domestic Animals Reproduction indicates that progesterone prepares the follicle ovulation by altering gene expression in follicle cells, by affecting the blood supply to the follicle and probably by acting on the egg itself. This phase of a woman's cycle, which is called the ovulation phase, generally lasts 16-32 hours and ends with ovulation. At ovulation, the follicle ruptures, releasing the egg from the ovary, along with some accompanying follicular cells. Together, the egg and the surrounding cells called cumulus. after Ovulation
After ovulation, the follicle cells remaining in the ovary develops into a structure called the corpus luteum. This structure continues to make modest pinched nerve amount of estrogen, but increases progesterone production to levels that are at the highest pinched nerve level around day 21. This is part of a woman's cycle, which is called the luteal phase, focused to prepare the uterus for implantation pinched nerve of the embryo. If the embryo implants, ovarian and placental pinched nerve hormone responds women continue to make progesterone until the end of pregnancy, when the placenta begins to produce hormones. If fertilization does not occur, the corpus luteum degenerates, and the levels of estrogen and progesterone fall, it will trigger the menstrual flow and beginning a new cycle. Related pinched nerve Articles Estrogen, Progesterone, and Ovulation Function bronchi
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