9.4 Menstrual Cycle — RBR Life Science

Start Here Introduction ▾

Welcome! 9.4 Menstrual Cycle — 20 questions, CSIR-NET style.

Tap the test below — it opens on its own full screen. Use ← All tests at the top to come back.
Each question has a 40-second timer. Answer, then Submit to see your score.
Tap 📋 View Solution under any question for a full explanation.

Open Review at the bottom for a quick revision list of every question with its correct answer.

All 20 Questions Review ▾

Quick revision: every question with its correct answer. For the full explanation, open the test and tap View Solution.

9.4 Menstrual Cycle — Test 1

Q1. The mid-cycle LH surge is triggered by:✓ Rising estrogen exerting positive feedback

Q2. Ovulation occurs:✓ About 24-36 hours after the LH surge begins

Q3. After ovulation, the ruptured follicle becomes the:✓ Corpus luteum (secreting progesterone)

Q4. The luteal phase is dominated by:✓ Progesterone (making the endometrium secretory)

Q5. If pregnancy does not occur, the corpus luteum regresses, causing:✓ A fall in progesterone and estrogen, then menstruation

Q6. If GnRH is given at a constant (non-pulsatile) rate, gonadotropin secretion:✓ Initially rises, then falls (receptor downregulation)

Q7. Match each phase/event with its hormone and choose the correct option.✓ A-ii, B-i, C-iii

Q8. Early in the follicular phase, estrogen exerts ___ feedback on the pituitary.✓ Negative

Q9. The hormone that rises first to recruit follicles at the start of the cycle is:✓ FSH

Q10. Estrogen primes the follicle for ovulation by UPregulating:✓ LH receptors on granulosa cells

Q11. Basal body temperature rises in the luteal phase because of:✓ Progesterone's thermogenic effect

Q12. The corpus luteum is maintained in early pregnancy by:✓ hCG (from the placenta)

Q13. Menstruation is precipitated by:✓ Withdrawal of progesterone (and estrogen) as the corpus luteum regresses

Q14. The dominant follicle is selected partly because it:✓ Is most sensitive to FSH (and makes the most estrogen)

Q15. During the LH surge, granulosa/theca cells shift toward producing more:✓ Progesterone (luteinization)

Q16. The phase length that is relatively constant (~14 days) is the:✓ Luteal phase

Q17. Combined oral contraceptives prevent ovulation mainly by:✓ Suppressing FSH/LH (no follicular development or LH surge)

Q18. Inhibin during the cycle acts to selectively suppress:✓ FSH

Q19. A sustained rise in basal body temperature across the second half of the cycle indicates:✓ That ovulation has occurred (progesterone effect)

Q20. The correct hormonal sequence across the cycle is:✓ FSH rise -> estrogen rise -> LH surge -> ovulation -> progesterone (luteal) -> menstruation