Q149 / 180 · NEET 2019 (Odisha) · Zoology

No new follicles develop in the luteal phase of the menstrual cycle because

  • A
    follicles do not remain in the ovary after ovulation
  • B
    FSH levels are high in the luteal phase
  • C
    LH levels are high in the luteal phase
  • Correct answer
    D
    both FSH and LH levels are low in the luteal phase

Solution

No new follicles develop in the luteal phase of menstrual cycle. It is because during this phase, Luteinising Hormone (LH) and Follicle Stimulating Hormone (FSH) levels decrease. Instead, the already ruptured follicle closes after releasing the egg and forms a corpus luteum during luteal phase, which produces progesterone.

Hence, the correct answer is option: 'D'.

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