Menstrual Cycle Physiology: Ovarian Cycle – Brief Overview
LH and FSH are required for follicular development and continued growth until ovulation
• Follicular Phase - Selection of dominant follicle
- FSH from pituitary stimulates granulosa cells
- LH from pituitary Incr androgens from theca cells
• Ovulation - Release of dominant follicle
• Luteal Phase - Ripening of corpus luteum
Corpus luteum forms following ovulation -> LH supports corpus luteum function until natural atrophy or pregnancy occur -> Progesterone produced -> Inhibit FSH/LH release from pituitary -> Atrophy of corpus luteum if embryo does not implant
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