Ovulation takes place in a month between

Step-by-step solution

The menstrual cycle can be divided into four phases: menstruation, proliferative, ovulatory and secretory phase. Day 1 - 5 (menstruation phase) experience lower estrogens and progesterone level, which in turn results in disintegration of endometrium and menses. Day 5 - 13 (proliferative phase) is marked by endometrium thickening under the influence of estrogens as secreted by developing follicle. Day 11-14 comes under proliferative phase. Proliferative phase is followed by ovulation, i.e., rupture of mature Graafia