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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Ann N Y Acad Sci. 2008;1135:10–18. doi: 10.1196/annals.1429.018

Figure 1. General overview of the important factors in the menstrual cycle.

Figure 1

Regulation of the menstrual cycle begins with influences at the level of the hypothalamus. The hypothalamus stimulates the anterior pituitary which stimulates the ovaries. One of the end organs for the ovarian sex hormones is the endometrium. The menstrual cycle is regulated by feed back and cross talk between these different components.