How the ovaries control the menstrual cycle

　　The function of the ovaries is female It is crucial in the reproductive system, responsible for both the reproductive function of human reproduction and the endocrine function of producing important female hormones. The two are inseparable and coordinated with each other. So, how do female friends’ ovaries control the menstrual cycle?

　　When the ovary develops to a certain level, the original follicles gradually develop into mature follicles, producing more estrogen, which causes Uterus of intimal hyperplasia. At this time, the ovary coordinates with the pituitary gland and the hypothalamus, and the pituitary gland secretes a large amount of gonadotropin, causing the mature follicles to ovulate.

　　After the egg is released, it falls into the abdominal cavity, is picked up by the nearby fimbria of the fallopian tube, and enters the fallopian tube to wait for fertilization. After releasing the egg, the follicle continues to develop into the corpus luteum in the ovary. The corpus luteum is a tissue sampled from yellow flowers. It contains a large amount of lipid substances and secretes a large amount of estrogen and progesterone, causing the endometrium of the uterus to change from the proliferative phase to the secretory phase.

　　If the discharged egg is fertilized and becomes a fertilized egg, the outer layer of villi of the fertilized egg develops, and the villi secrete human chorionic gonadotropin. The latter begins to replace the gonadotropin secreted by the pituitary gland and acts on the corpus luteum of the ovary, allowing the corpus luteum to continue to develop and form the corpus luteum of pregnancy, which continues to secrete estrogen and progesterone to maintain pregnancy.