menstruation cycle

• Estrogen is a hormone that plays a key role in the menstrual cycle, promoting the growth and development of the uterine lining.
• Estrogen levels rise during follicular phase in preparation for ovulation.
• Fertilization can occur only if sperm enters the fallopian tube, which leads to the uterus.
• Ovulation occurs when an egg is released from the ovaries.
• Progesterone triggers the preparation of the uterine lining in the event of pregnancy.
• The menstrual cycle consists of four phases: the menstrual phase, the follicular phase, the ovulation phase, and the luteal phase.
• Luteinizing hormone (LH) is a hormone that triggers ovulation and the release of an egg from the ovary during the ovulation phase of the menstrual cycle.
• Progesterone is another hormone involved in the menstrual cycle, helping to maintain the uterine lining during pregnancy or preparing it for implantation if fertilization occurs.
• During ovulation, FSH levels increase, causing an egg to mature within one of the ovaries.
• The hypothalamus releases gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
• Progesterone is another hormone involved in the menstrual cycle, produced by the corpus luteum (CL) after ovulation.
• The CL produces progesterone to prepare the endometrium for implantation if fertilization occurs.
• The egg travels down the fallopian tube towards the uterus.
• If fertilization occurs, it will take place within the first day or two following ovulation.
• If pregnancy does not occur, the CL degenerates and estrogen and progesterone levels decrease, leading to shedding of the endometrial lining.
• Sperm can survive up to five days inside the female reproductive tract.
• The fertile period lasts about five days, with two days being most likely for conception.
• If fertilization does not occur, progesterone levels decrease, leading to shedding of the uterine lining (menstruation).
• If no pregnancy occurs within this time frame, estrogen levels decrease, leading to shedding of the endometrium (lining) of the uterus.
• Menstruation begins on day one of the cycle and continues until the endometrial tissue has been shed completely.
• During the menstrual phase, estrogen and progesterone levels decrease, leading to shedding of the endometrial lining and bleeding known as menstruation.
• Amenorrhea is defined as no menstrual periods for three months or more.
• Amenorrhea is defined as no menstrual periods for three months or more.
• At day 14, LH surges, triggering ovulation and releasing the matured egg from the ovary.
• Estrogen levels increase throughout the menstrual cycle, peaking at ovulation and then decreasing as progesterone takes over.
• Estrogen levels increase throughout the menstrual cycle, peaking at ovulation and then decreasing as progesterone takes over.
• Estrogen levels increase throughout the menstrual cycle, peaking at ovulation and then decreasing as progesterone takes over.
• Estrogen causes the endometrium to thicken and prepare for implantation by increasing blood flow and mucous production.
• Estrogen causes the endometrium to thicken and prepare for implantation by increasing blood flow and mucous production.
• If fertilization does not occur, estrogen levels decrease rapidly, leading to shedding of the uterine lining and the start of menstruation.
• If fertilization does not occur, estrogen levels decrease rapidly, leading to shedding of the uterine lining and the start of menstruation.
• After ovulation, the remaining corpus luteum produces progesterone until the end of the menstrual cycle.
• If fertilization does not occur, estrogen levels decrease rapidly, leading to shedding of the uterine lining and the start of menstruation.
• Estrogen causes the endometrium to thicken and prepare for implantation by increasing blood flow and mucous production.
• After ovulation, the remaining corpus luteum produces progesterone until the end of the menstrual cycle.
• Dysmenorrhea is characterized by painful cramps during menstruation.
• Dysmenorrhea is characterized by painful cramps during menstruation.
• After ovulation, the remaining corpus luteum produces progesterone until the end of the menstrual cycle.
• In the follicular phase, estrogen levels increase, causing the growth and maturation of one or more eggs in the ovaries.
• In the follicular phase, estrogen levels increase, causing the growth and maturation of one or more eggs in the ovaries.