In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was:
Correct answer: D. High level of circulating hCG to stimulate estrogen and progesterone synthesis
- A. High level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
- B. High level of circulating hCG to stimulate endometrial thickening
- C. High levels of FSH and LH in uterus to stimulate endometrial thickening
- D. High level of circulating hCG to stimulate estrogen and progesterone synthesis
Explanation
During pregnancy, placenta also acts as an endocrine tissue and produces several hormones like human chorionic gonadotropin (hCG), human placental estrogen, progesterone, etc. The hCG stimulates and maintains the corpus luteum to secrete progesterone.
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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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