Ovarian And Uterine Cycle Diagram — a labelled NEET Biology diagram with a definitions lexicon.
Ovarian and Uterine Cycle Diagram Labelled parts: Menstrual Cycle, Hormone levels, Ovarian events, Uterine endometrium, FSH, LH surge, Estrogen, Progesterone, Follicular phase, Luteal phase, Growing follicles, Mature follicle, Ovulation, Ovum, Corpus luteum, Degenerating corpus luteum, Menstrual phase, Proliferative phase, Secretory phase, Endometrium thickness, Day 1, Day 5, Day 14, Day 28. The cyclical changes in the endometrium (uterine lining) of the female reproductive system, preparing the uterus for potential pregnancy. It is regulated by fluctuating levels of ovarian and pituitary hormones. FYI: The cycle is divided into follicular phase (estrogen dominance) and luteal phase (progesterone dominance), with the corpus luteum being key in the latter. The inner lining of the uterus that undergoes cyclical changes in preparation for potential implantation. It is highly vascularized and sheds during menstruation if pregnancy does not occur. FYI: The cyclical changes in the endometrium are primarily regulated by the fluctuating levels of progesterone and estrogen secreted by the corpus luteum. Immature ovarian follicles that develop during the follicular phase of the menstrual cycle. Their growth is stimulated by increasing levels of Follicle-Stimulating Hormone (FSH). FYI: The primary function of the growing follicles is to produce estrogen, which helps to rebuild the uterine lining (endometrium). The dominant, fully developed ovarian follicle that is ready to ovulate. It contains a large oocyte and is characterized by the formation of the zona pellucida. FYI: The LH surge, triggered by high estrogen levels, is the critical event that causes the mature follicle to rupture and release the ovum. The phase of the uterine cycle that follows ovulation, characterized by the thickening and nutrient-rich preparation of the endometrium. This phase is primarily driven by high levels of progesterone. FYI: If fertilization does not occur, the corpus luteum degenerates, leading to a sharp drop in progesterone and the onset of menstruation.