The hormone labeled X in the diagram is often used in over-the-counter diagnostic tests to determine when ovulation has occurred. This hormone is:
Correct answer: D. LH
- A. Estrogen
- B. Progesterone
- C. FSH
- D. LH
Explanation
The correct answer is LH, as it is the hormone whose surge triggers ovulation and is detected by ovulation prediction kits. Estrogen and progesterone play roles in preparing and maintaining the uterine lining, not in the detection of ovulation. FSH is involved in follicle development but not directly in ovulation prediction. Testosterone is a predominantly male hormone and irrelevant to this context.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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