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Question
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Explain the changes that occur in the uterus simultaneously in anticipation.
Solution
At the start of the menstrual cycle, the endometrium of the uterus starts regenerating through the proliferation of cells induced by FSH and CH. After ovulation, the progesterone secreted by the corpus luteum prepares the endometrium (uterine wall) to receive the egg if it is fertilized.
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| HORMONE A | HORMONE B | |
| Subject 1 | Shows a peak on the 14th Day of the menstrual cycle. | Falls down during the luteal phase. |
| Subject 2 | Shows a peak on the 14th Day of the menstrual cycle. | The level is maintained high in the luteal phase. |
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