In the female reproductive cycle, ovulation is triggered by a surge in: MCQ with Answer and Explanation

In the female reproductive cycle, ovulation is triggered by a surge in:
A. Progesterone
B. Follicle-stimulating hormone (FSH)
C. Estrogen
D. Luteinizing hormone (LH)
Answer: Option D
Solution (By JKExamLibrary)
A mid-cycle surge in LH (luteinizing hormone) from the anterior pituitary triggers ovulation—the release of the secondary oocyte from the mature Graafian follicle. FSH stimulates follicle development. Estrogen levels rise before ovulation and provide positive feedback for the LH surge. Progesterone is secreted after ovulation by the corpus luteum.

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