what is menstrual cycle? with the help of a well diagram describe the menstrual cycle.
give me answer with diagram
Answers
The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation and the luteal phase. Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS). Knowing when in the menstrual cycle a woman is most likely to conceive can increase the chance of pregnancy.
The menstrual cycle is a series of natural changes that occur in the human female reproductive system (specifically the uterus and ovaries) that makes pregnancy possible. Each cycle involves egg production and the preparation of the uterus to receive a fertilized egg. The ovarian cycle controls the production and release of eggs, and the uterine cycle governs the preparation and maintenance of the lining of the womb (uterus). These cycles occur concurrently and are coordinated over 25 to 30 days, with a median length of 28 days. The cycles are driven by naturally occurring hormones and the cyclical rise and fall of the hormone estrogen prompts the production and growth of oocytes (immature egg cells) and with the hormone progesterone, the thickening of the lining of the uterus to prepare for pregnancy.
Day one of the cycle starts on the first day of the period, and the egg is released from an ovary around day fourteen. The thickened lining of the uterus can provide nutrients to an embryo if it successfully implants. If not the lining is broken down and released. The cyclical shedding of the lining (endometrium) triggered by falling progesterone levels is called menstruation or a "period", which is a sign that pregnancy has not occurred. Each cycle can be divided into three phases based on events in the ovary (ovarian cycle) or in the uterus (uterine cycle).The ovarian cycle consists of the follicular phase, ovulation, and luteal phase whereas the uterine cycle is divided into the menstrual phase, proliferative phase, and secretory phase.The menstrual phase lasts for about the first five days of the cycle.
The cycles begin with the first period, known as menarche, which occurs between the ages of 12 and 16 years. The cycle stops after menopause which usually occurs between 45 and 55 years of age.Up to 20% of women experience problems sufficient to disrupt daily functioning as a result their menstrual cycle.These include acne, tender breasts, bloating, feeling tired, irritability and mood changes.In 20 to 30% of women, these interfere with normal life enough to cause premenstrual syndrome. In 3 to 8%, the problems are severe.The menstrual cycle can be disrupted by using hormonal birth control.