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Question
During a menstrual cycle, a mid-cycle surge of ______ triggers ovulation.
Options
estrogen
progesterone
LH
FSH
MCQ
Fill in the Blanks
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Solution
During a menstrual cycle, a mid-cycle surge of LH triggers ovulation.
Explanation:
LH causes the mature egg to break out of the follicle and move into the fallopian tube. This LH surge is crucial for ovulation to occur. Estrogen levels rise before this surge, but the actual trigger for ovulation is the LH surge. Progesterone and FSH have other roles but do not trigger ovulation directly.
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