Describe how the changing level of FSH,LH and progesterone during menstrual cycle induce changes in the ovary and the uterus in human females.
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FSH stimulates follicles on the ovary to grow and prepare the eggs for ovulation. As the follicles increase in size, they begin to release estrogen and a low level of progesterone into the blood. The level of estrogen rises to a peak, causing a spike in the concentration of LH.
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