1. Learning Intentions
Describe the sequence of events in the ovarian cycle, with reference to the follicular phase, ovulation, and luteal phase.
Describe the sequence of events in the uterine cycle, with reference to menstruation, the proliferative phase, and the secretory phase
Describe the control of the ovarian and uterine cycles by hormones including gonadotropin-release hormone (GnRH), follicle stimulating hormone (FSH), luteinizing hormone (LH), estrogen, and progesterone.

2. V.O.D Overview of Ovarian Cycle and Uterine Cycle

3. Ovarian Cycle

4. Ovarian Cycle And Uterine Cycle
Decrease progesterone levels – inhibition of GnRH lifted – increase in GnRH – increase in FSH and LH to recruit the next follicle.
One follicle grows rapidly and produces estrogen. Mild levels strong and GnRH cancel each other out.
High estrogen levels cause spike in LH and FSH because of high affinity receptors – see spike in LH and FSH – signed from GnRh.
LH – responsible for ovulation and change to corpus luteum
Follicle change – decrease in estrogen
Corpus Leutum – increase protesterone – increase the lining of functional zone

5. How does birth control work?

6. Learning Activity
Hormone Graphic Organizer