Menstrual Cycle

Question 1

Normal Menstrual Cycle

Answer 1

• Tightly coordinated cycle of stimulatory & inhibitory effects.
• Results in release of single mature oocyte from pool of hundreds of thousands of primordial oocytes.
• Controlled by hormonal changes driven by the hypothalamic-pituitary-ovarian axis through a series of feedback loops.

Question 2

The normal menstrual cycle usually begins at…

Answer 2

Menarche (12-15 years)