At the beginning of the menstrual phase the _ are at the lowest level.
Correct answer: C. Ovarian hormones
- A. Follicle stimulating harmone
- B. Gonadotrophins
- C. Ovarian hormones
- D. None of these
Explanation
At the beginning of the menstrual phase, the levels of ovarian hormones, specifically estrogen and progesterone, are at their lowest. This is because the corpus luteum, which produced these hormones during the previous menstrual cycle, has degenerated, and a new follicle has not yet matured to produce significant amounts of estrogen.
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About Reproduction
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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