Women |
Follicular | Periovulatory | Luteal |
Estradiol secretion from ovaries as follicle develops | Rapid increase in estradiol that triggers luteinizing hormone surge that induces ovulation | Release of relatively high concentrations of both estradiol and progesterone from the corpus luteum |
Rats/Mice |
Metestrus/Diestrus | Proestrus/Estrus | No equivalent phase |
Estradiol secretion from ovaries as follicle develops | Rapid increase in estradiol that triggers luteinizing hormone surge that induces progesterone release and ovulation | |