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  2. 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] Performing controlled ovarian hyperstimulation leads to a greater recruitment ...

  3. 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 ...

  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. Ovarian follicle - Wikipedia

    en.wikipedia.org/wiki/Ovarian_follicle

    An ovarian follicle is a roughly spheroid cellular aggregation set found in the ovaries.It secretes hormones that influence stages of the menstrual cycle.At the time of puberty, women have approximately 200,000 to 300,000 follicles, [1] [2] each with the potential to release an egg cell (ovum) at ovulation for fertilization. [3]

  7. Follicular atresia - Wikipedia

    en.wikipedia.org/wiki/Follicular_atresia

    Only one follicle will be mature enough to release an egg and may be fertilized. [5] Typically around 20 follicles mature each month but only a single follicle is ovulated; the follicle from which the oocyte was released becomes the corpus luteum. The corpus luteum is the last stage of the ovarian follicles' lifecycle.

  8. 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.

  9. Granulosa cell - Wikipedia

    en.wikipedia.org/wiki/Granulosa_cell

    CCs primarily support growth and development of the oocyte whereas MGCs primarily serve an endocrine function and support the growth of the follicle. Cumulus cells aid in oocyte development and show higher expression of SLC38A3, a transporter for amino acids, and Aldoa, Eno1, Ldh1, Pfkp, Pkm2, and Tpi1, enzymes responsible for glycolysis. [ 7 ]