Question:
Which of the following hormones attains the peak of expression in the middle of the menstrual cycle?
Which of the following hormones attains the peak of expression in the middle of the menstrual cycle?
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LH = Luteinizing Hormone = "L" for "Leads to" ovulation at mid-cycle.
Updated On: May 14, 2026
- Estrogen
- Progesterone
- LH
- FSH
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The Correct Option is C
Solution and Explanation
Step 1: Concept
The menstrual cycle is regulated by periodic changes in the levels of pituitary and ovarian hormones.
Step 2: Analysis of the Mid-cycle
Around day 14 of a 28-day cycle, high levels of estrogen trigger a rapid surge in Luteinizing Hormone (LH) from the pituitary gland.
Step 3: Reasoning
This "LH surge" is the primary trigger for ovulation (release of the egg from the follicle).
Step 4: Conclusion
LH is the hormone that reaches its peak expression in the middle of the cycle to induce ovulation. Final Answer: (C)
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