About which day in a normal human menstrual cycle does rapid secretion of $LH$ (popularly called $LH$ surge) normally occurs?

  • [AIPMT 2011]
  • A

    $14^{th}$ day

  • B

    $20^{th}$ day

  • C

    $5^{th}$ day

  • D

    $11^{th}$ day

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What are the events that take place in the ovary and uterus during follicular phase of the menstrual cycle ?

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

  • [NEET 2019]

Menstrual cycle occurs in