Oogenesis or the formation of ova
Throughout the female’s childbearing years, only 300 to 400 of these follicles will produce mature ova. During the reproductive years of women, between about 13 and 46 years of age, about 400 of these follicles will develop enough to ovulate, one each month, and the remainder degenerate. (Erickson, 1995).
Folliculogenesis can be defined as the growth of a follicle through the different stages of development, from the time it emerges from the follicular store until it ovulates or become atretic