menstrual cycle

Question

Ovulation is triggered by a surge in which hormone?

RankGuru · Accepted Answer

1. **Menstrual Cycle**: Controlled by pituitary and ovarian hormones.
2. **Gonadotropins ($FSH$ and $LH$)**: These increase gradually during the follicular phase.
3. **The Surge**: In the middle of the cycle (around day 14), both $FSH$ and $LH$ attain a peak level.
4. **LH Surge**: Rapid secretion of **LH** leading to its maximum level induces the rupture of the Graafian follicle.
5. **Result**: This leads to the release of the ovum (ovulation).

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menstrual cycle

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