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Reproductive System - eternity vasquez p6 - Coggle Diagram

- - - - ovarian hormones are at lowest levels
      - gonadotropin levels are beginning to rise
      - stratum functionalis detaches from uterine wall and is shed
      - by day 5, growing ovarian follicles start to produce more estrogen
    - - rising estrogen levels prompt generation of new stratum functionalis layer
      - estrogen increases synthesis of progestrogen receptors in endometrium
      - thins out normally thick, sticky cervical mucus to facilitate sperm passage
      - ovulation occurs at end of profilerative on day 14
    - - phase that is most consistent in duration
      - endometrium prepares for embryo to implant
      - if fertilization does not occur: corpus luteum degenerates toward end of secretory phase; progestrogen levels fall