Beginning with the flow phase, arrange the biochemical processes in the order in which they occur during the menstrual cycle. Tiles FSH and LH stimulate the follicles to develop and the oocyte to produce estrogen. A breakdown of corpus luteum causes progesterone levels to drop. A spike in LH causes the follicle to rupture. The endometrial lining breaks down and low levels of estrogen stimulate the pituitary to release FSH and LH. Rising estrogen levels suppress FSH production and development of other follicles. High progesterone levels maintain the endometrial lining of the uterus. Sequence
Added by Anita C.
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The endometrial lining breaks down and low levels of estrogen stimulate the pituitary to release FSH and LH. Show more…
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The hypothalamus secretes hormones resulting in the secretion of FSH and LH from the pituitary gland. FSH in females circulates to the ovaries where it induces folliculogenesis. As a result, granulosa cells within a developing follicle secrete estrogen and inhibin. Rising levels of this hormone then induce the proliferative phase of the menstrual cycle. A spike in LH then causes ovulation, after which the remaining follicle cells form a corpus luteum. The corpus luteum then secretes progesterone, which moves the uterus into its last stage before menses.
Adi S.
The Menstrual Cycle 1. Secretion of FSH starts 2. A burst of LH is released 3. Follicles produce estrogen 4. Uterine lining is shed 5. Follicles develop inside the ovaries 6. Endometrium prepared for possible pregnancy 7. Corpus luteum produces progesterone 8. Ovulation occurs
Rachel G.
Chronologically arrange the events in the ovulation phase of the menstrual cycle: Ovarian follicle ruptures. Oocyte is released. Dominant follicle continues to secrete estrogen. Pituitary gland becomes more responsive to GnRH form hypothalamus. Estrogen from dominant follicle serves as positive feedback to pituitary secretion of FSH and LH.
Anand J.
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