Ovulation is triggered by
Correct answer: B. LH surge
- A. FSH surge
- B. LH surge
- C. Estrogen decrease
- D. Progesterone increase
Explanation
The LH surge (luteinizing hormone) triggers ovulation, releasing the mature egg from the Graafian follicle.
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About Menstrual Cycle
The menstrual cycle covers the coordinated changes in the ovaries and uterus, including menstruation, follicular growth, ovulation and corpus luteum formation. It links follicle-stimulating hormone, luteinizing hormone, oestrogen and progesterone with endometrial changes, and distinguishes the ovarian cycle from the uterine cycle and the hormonal events of pregnancy.
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