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  2. Follicular phase - Wikipedia

    en.wikipedia.org/wiki/Follicular_phase

    Two or three days before LH levels begin to increase, [7] usually by day seven of the cycle, [8] one (or occasionally two) of the recruited follicles has emerged as dominant. Many endocrinologists believe that the estrogen secretion of the dominant follicle has increased to a level that GnRH production is suppressed, which lowers the levels of ...

  3. Folliculogenesis - Wikipedia

    en.wikipedia.org/wiki/Folliculogenesis

    The actual time for development of a follicle varies. The growth of the dominant follicle during the follicular phase is about 1.5 mm per day (±0.1 mm), both in natural cycles and for any dominant follicle developing while taking combined oral contraceptive pill. [8]

  4. Ovarian follicle dominance - Wikipedia

    en.wikipedia.org/wiki/Ovarian_follicle_dominance

    The ovulated follicles come from a larger pool of growing follicles Follicle dominance results from competition between follicles from this growing pool, as only some will be selected for further development. These selected follicles are known as the dominant follicles. In humans, there is usually only one dominant follicle per cycle. [1]

  5. Ovarian follicle activation - Wikipedia

    en.wikipedia.org/wiki/Ovarian_follicle_activation

    Ovarian follicle activation can be defined as primordial follicles in the ovary moving from a quiescent (inactive) to a growing phase. The primordial follicle in the ovary is what makes up the “pool” of follicles that will be induced to enter growth and developmental changes that change them into pre-ovulatory follicles, ready to be released during ovulation.

  6. Hypothalamic–pituitary–gonadal axis - Wikipedia

    en.wikipedia.org/wiki/Hypothalamic–pituitary...

    The development of the dominant follicle occurs in three stages: recruitment, selection, and dominance. Recruitment happens during the first four days of the menstrual cycle when FSH stimulates the recruitment of a group of follicles from the non-growing pool.

  7. Ovulation - Wikipedia

    en.wikipedia.org/wiki/Ovulation

    Ovulation occurs about midway through the menstrual cycle, after the follicular phase, and is followed by the luteal phase.Note that ovulation is characterized by a sharp spike in levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), resulting from the peak of estrogen levels during the follicular phase.

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  9. Estrous cycle - Wikipedia

    en.wikipedia.org/wiki/Estrous_cycle

    A set of follicles starts to develop near the end of proestrus and grows at a nearly constant rate until the beginning of the subsequent estrus when the growth rates accelerate eightfold. Ovulation occurs about 109 hours after the start of follicle growth. Estrogen peaks at about 11 am on the day of