![](http://www.alamy.com/thumbs/6/3D25B3D0-8CC7-4EED-BB6A-417ED371DFDB/2WWB29G.jpg)
Menstrual cycle without fertilization.
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Photo credit: © JACOPIN / BSIP / Alamy / Afripics
License: Licensed
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Keywords: cycleovarian, folliclegraafian, follicleovulationuterusendometriumuterine, follicleprimary, folliclesecondary, follicletertiary, gametehormonegonadotropinfollicle-stimulating, gynecologyatresiareproductive, hormoneestrogenprogesteronesteroid, hormoneluteinizing, hormonesex, hormonesteroidfolliclemucosacurvecharttemperature, luteumovumovogenesisoocyteovarian, phaseovarycorpus, phasesecretory, reproductiongametefemale, systemsexual, wallnormalartworkcyclehumanfemalewomanmedicine, wallproliferative