Menstrual cycle: Also called as Female reproductive cycle. After puberty (10 - 12) yrs , the female reproductive system undergoes a repeated Cyclic process Called as menstrual Cycle. It lasts for 28 days (±7days) [ 21 days up to 35 days]. First menstrual Cycle is called menarch (10-12 yrs age) while last menstrual cycle is Called menopause (45-50 Yrs age) .
Folliculogenesis:
The process of formation of graffian follicle from primordial follicles is called folliculargenesis. It takes place in ovary every month after puberty under the regulation of hypothalamus and pituitary gland.