Feedback Mechanisms in The Female Reproductive System

• Menstrual cycle is produced by the estrogen hormones.
• Menstrual cycle occurs every month starting when a female is 10 to 13 years old.
• Menstrual cycle is the mass of ovarian cells produces an ovum.
• Menstrual cycle is controlled by the Follicle-Stimulating Hormone (FSH).
• Menstrual cycle is produced in the anterior lobe of the pituitary Gland.
• A female experiences body changes even before the first menstruation which is also known as menarche
• Pituitary Gland starts a series of hormonal changes that make a woman capable of pregnancy.
• FSH stimulates the formation of follicles in the ovaries.
• LH stimulates ovulation
• Menstrual cycle is a hormonal process a woman's body goes through each month to prepare for a possible pregnancy.
• The menstrual cycle can be summarised by the following stages: Follicle stage, Ovulation Stage, Corpus Luteum stage, Menstrual Flow Stage.
• Ovarian Cycle occurs on the 14th day of the cycle.
• Under the influence of luteinizing Hormone the cells of the ruptured follicle develop into a yellow body called the Corpus Luteum that produces more estrogen and progesterone.
• Uterine Cycle is when the surface of the endometrium begins to disintegrate and the blood vessels rupture.
• Blood and some accompanying endometrial tissues flow out of the vagina in the process called menstruation.
• Proliferative phase is the formation of the corpus luteum and the secretion of progesterone triggered the endometrium to double in thickness and prepare itself for developing embryo.
• The Proliferative Phase is up to 6 to 14 days
• Secretory Phase begins in the 15th day until before the onset of the next menstrual phase.
• Feedback Mechanism is the process through which the level of a certain substance influences the level of substance.
• Estrogen is located in the Follicle, Ovary which is the secondary female characteristics and thickens endometrium.
• Progesterone is located in the Corpus Luteum, Ovary which stimulates endometrium and inhibits uterine contractions and ovulation.
• Luteinizing Hormone is located in the Pituitary Gland which develops and maintains Corpus Luteum and stimulates ovulation.
• Follicle-Stimulating Hormone is located in the Pituitary Gland which stimulates the formation of follicles in the ovaries.
• Menstruation is the breakdown and discharge of the soft uterine tissues and the fertilised egg.