Which hormone surge directly triggers ovulation during the menstrual cycle?
Correct answer: B. Luteinizing hormone
- A. Follicle-stimulating hormone
- B. Luteinizing hormone
- C. Oestrogen from the corpus luteum
- D. Progesterone from the follicle
Explanation
A mid-cycle surge of luteinizing hormone causes rupture of the mature ovarian follicle and ovulation. FSH supports follicular development, while progesterone rises mainly after ovulation from the corpus luteum.
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About Reproductive System
The reproductive system covers the male and female reproductive organs, gamete formation, the menstrual and ovarian cycles, fertilization, implantation and pregnancy. It explains the roles of FSH, LH, oestrogen, progesterone and testosterone, while distinguishing spermatogenesis from oogenesis and the reproductive organs from the accessory glands.
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