If fertilisation does not occur, the corpus luteum
Correct answer: A. degenerates into a scar called the corpus albicans
- A. degenerates into a scar called the corpus albicans
- B. continues to grow throughout the cycle
- C. develops into the placenta
- D. starts secreting hCG
Explanation
Without hCG from an embryo, the corpus luteum survives only about ten days and then degenerates, its progesterone falling to trigger menstruation. Only in pregnancy does it persist, sustained by embryonic hCG.
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About Human Reproductive System
The human reproductive system includes the male and female organs that produce gametes, secrete sex hormones and support fertilization and development. Questions cover the testes, ovaries, reproductive ducts, menstrual and ovarian cycles, ovulation, fertilization, implantation, placenta formation and the roles of FSH, LH, oestrogen, progesterone and testosterone.
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