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Which one of the following events is correctly matched with the time period in a normal menstrual cycle?

  1. A
    release of egg : 5th day
  2. B
    endometrium regenerates : 5 - 10 days
  3. C
    endometrium secretes nutrients for implantation : 11-18 days
  4. D
    rise in progesterone level : 1 - 15 days.

Solution & Step-by-step Explanation

In a standard 28-day menstrual cycle:The proliferative phase (regeneration of the endometrium) occurs roughly from day 5 to day 14.Ovulation (release of egg) typically occurs on day 14.The secretory phase (secretion of nutrients) occurs after ovulation, from day 15 to 28.Progesterone levels rise significantly during the luteal phase (post-day 14).Option (b) is the most accurate representation among the choices.

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Which one of the following events is correctly matched with the time period in a normal menstrual cycle?
A
release of egg : 5th day
B
endometrium regenerates : 5 - 10 days
C
endometrium secretes nutrients for implantation : 11-18 days
D
rise in progesterone level : 1 - 15 days.

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Human PhysiologyReproductionMenstrual Cycle

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