Menstrual Cycle Regulation

Question 1

Overview of Menstrual Cycle

Answer 1

1. Rise in FSH
2. Rise in E2 provides negative feedback on FSH
3. Rise in LH over follicular phase
4. LH surge induces ovulation
5. Rise in progesterone (luteal phase)
6. If not pregnant, decline in progesterone/estrogen lifts negative feedback on FSH
   –> cycle repeats