Results in decrease in blood FSH levels Only one follicle continues . Corpus secretes significant amounts of progesterone . This hormone helps to maintain the uterus. This decline causes no further development of ovarian follicles. The hypothalamus is released form inhibitory control of the progesterone, GnRH is released and FSH and LH levels begin to rise.
New cycle is initiated.
The menstrual cycle Uterine cycle - the series of changes which occur in the endometrium of the nonpregnant female. 28 days,, range 21-35. Three phases 1. Breakdown of the endometrium. 7-14 days Inc. thickness of the functional zone also called the preovualtory phase Basilar zone remains intact Supply cells to recover and regenerate the functional zone.