1 Based on the hormonal regulation mechanism of the menstrual cycle, explain the occurrence of menstruation.
2 The body has very few processes regulated by positive feedback mechanisms. Provide an example that occurs during the menstrual cycle.
3 If fertilization occurs, why does menstruation not take place? Explain this phenomenon using hormonal regulation.
4 Some hormones have different effects at varying concentrations. Provide an example you are familiar with.
5 What is the relationship between the corpus luteum and the follicle?
6 The yellow body (corpus luteum) produces large amounts of progesterone and estrogen. Why is this significant?
7 What factors lead to the degeneration of the corpus luteum?
8 The pituitary gland continuously secretes FSH. How is the amount of FSH secretion influenced by different factors?
9 Why can hCG confirm that a woman is pregnant (i.e., that the embryo has implanted in the uterine lining)?
10 What is the actual function of hCG?
11 What is the principle behind emergency contraceptive pills, and why must they be taken within 72 hours?
12 If estrogen and progesterone are continuously taken long-term for contraception, will a woman still have menstruation?
13 Emergency contraceptive pills contain the same ingredients as regular contraceptive pills, just at higher concentrations. Could one take large amounts of regular contraceptive pills as a
substitute for emergency contraceptive pills?
14 How is "infertility" defined medically?
15 Why do patients undergoing in vitro fertilization (IVF) typically receive FSH and LH injections?
16 The hypothalamus acts as a bridge between the nervous system and the endocrine system. Could it have any relationship with the menstrual cycle?