After ovulation, progesterone from the corpus luteum
Correct answer: A. maintains the thickened endometrium ready for implantation
- A. maintains the thickened endometrium ready for implantation
- B. immediately triggers menstruation
- C. stimulates a second ovulation
- D. dissolves the zona pellucida of the egg
Explanation
Progesterone makes the endometrium glandular and rich in blood supply, the state needed for an embryo to implant. Menstruation follows only when the corpus luteum fails and progesterone levels drop.
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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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