The hormone which MAINLY triggers the release of structure labelled as Y is
Correct answer: C. Luteinising hormone
- A. Estrogen
- B. Progesterone
- C. Luteinising hormone
- D. Follicle stimulating hormone
Explanation
The correct answer is luteinising hormone (LH). LH is responsible for triggering ovulation, which is the release of the egg from the ovarian follicle. Estrogen and progesterone are involved in the regulation of the menstrual cycle but are not primarily responsible for the release of the egg. Follicle Stimulating Hormone (FSH) helps in the growth and maturation of ovarian follicles but does not trigger their release.
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About Menstrual Cycle
The menstrual cycle covers the coordinated changes in the ovaries and uterus, including menstruation, follicular growth, ovulation and corpus luteum formation. It links follicle-stimulating hormone, luteinizing hormone, oestrogen and progesterone with endometrial changes, and distinguishes the ovarian cycle from the uterine cycle and the hormonal events of pregnancy.
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