Answer: Sustaining the corpus luteum so progesterone continues.
- A Sustaining the corpus luteum so progesterone continues
- B Stimulating fresh ovulation of a new ovarian follicle
- C Triggering menstruation
- D Inhibiting placental growth
Correct answer: A. Sustaining the corpus luteum so progesterone continues
Explanation: hCG from the trophoblast maintains the corpus luteum, which keeps secreting progesterone to support the endometrium until the placenta takes over.
The human male reproductive system: sperm formed in the testis mature in the epididymis and travel via the vas deferens, mixing with secretions of the seminal vesicle, prostate and bulbourethral glands. Image: Wumingbai, CC BY-SA 4.0, via Wikimedia Commons.
Concept context
Male and female reproductive systems, gametogenesis, fertilization, implantation, pregnancy, and reproductive health.