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Reproductive System - Coggle Diagram

- - - - Days 1-14, from menstruation till ovulation
      - FSH causes development of follicular cells
      - follicular cells secrete estrogen & become secondary follicles
    - - Day 14, triggered by increase of LH
      - Graafian follicle releases oocyte
      - pregnancy risk w/ the rise in progesterone
    - - Day 15-28, empty shell becomes Corpus Luteum
      - corpus luteum secretes progesterone & suppresses FSH
      - no pregnancy means decrease in progesterone & estrogen
  - - - Day 1-5, cells die and shed off causing the bleed
      - bleeding lasts from 3-5 days
    - - Day 6-14, endometrium doubles in thickness
      - ovulated egg can get caught for implantation
    - - Day 15-28, uterus prepares for pregnancy
      - uterine glands prepare ans sustain embryo until implantation
      - LH level drop if no pregnancy