Zoology - Human Reproduction Question with Solution | TestHub

Menstrual cycle consists of changes in the Ovary and the Uterus simultaneously. It begins with Menstrual or bleeding phase. This represents shedding of endometrium of uterus and unfertilized secondary oocyte. This phase is followed by follicular phase as follicles start developing in the ovary. At the same time the shedded endometrium starts its preparation and this is termed as proliferative phase. At the same time the follicles develop in the ovary from day$5^{\mathrm{t}\mathrm{h}}$to${10}^{\mathrm{t}\mathrm{h}}$day. The mid of 28 day cycle shows ovulatory phase that is graffian follicle from ovary releases secondary oocyte in the oviduct. This is followed by formation of corpus luteum and is known as Luteal phase and this shows high level of estrogen and progesterone.