after birth the female have oocyte one blocked in prophase one surrounded by follicular cells and they make up together primordial follicle before 3-4 months from puberty the primordial follicle grow to be primary follicle then it be secondary follicle then cavetart orteriary.We will divide the cycle into 3 phases:phase 1-pholicular phase: it contains 14 days, in this phase tertiary will continue growing to be graafian follicule(it holds oocyte one blocked in prophase one) phase 2-ovulation:it will continue meiosis one and give oocyte two and the meiosis two starts, but it blocked in metaphase two with oocyte two phase 3-after ovulation:the ovulation is release of oocyte two from the ovary and it occurs once per cycle.This process will repeats every cycle until the follicules finishied in level called menoposed 49-50 years oldAt puberty overian cycle starts in every cell 28 days.