Question:
The hormone predominantly secreted after the 14th day acting on the endometrium is?
The hormone predominantly secreted after the 14th day acting on the endometrium is?
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After ovulation the corpus luteum secretes the hormone that drives the secretory endometrium.
Updated On: Jun 23, 2026
- Progesterone
- Estrogen
- LH
- FSH
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The Correct Option is A
Solution and Explanation
Step 1: The 14th day of a typical 28-day cycle marks ovulation. The phase after day 14 is the post-ovulatory or secretory (luteal) phase.
Step 2: After ovulation the ruptured follicle becomes the corpus luteum, which predominantly secretes progesterone. Progesterone is responsible for the secretory changes in the endometrium and peaks around the 21st day. So the answer is progesterone (option a).
Step 3: Estrogen (b) dominates the pre-ovulatory proliferative phase (before day 14), driving endometrial proliferation, so it is not the predominant post-ovulatory hormone acting on the endometrium.
Step 4: LH (c) surges to trigger ovulation around day 14 but acts on the ovary, not directly remodelling the endometrium. FSH (d) drives follicular growth early in the cycle. Neither is the hormone predominantly acting on the endometrium after day 14.
Step 2: After ovulation the ruptured follicle becomes the corpus luteum, which predominantly secretes progesterone. Progesterone is responsible for the secretory changes in the endometrium and peaks around the 21st day. So the answer is progesterone (option a).
Step 3: Estrogen (b) dominates the pre-ovulatory proliferative phase (before day 14), driving endometrial proliferation, so it is not the predominant post-ovulatory hormone acting on the endometrium.
Step 4: LH (c) surges to trigger ovulation around day 14 but acts on the ovary, not directly remodelling the endometrium. FSH (d) drives follicular growth early in the cycle. Neither is the hormone predominantly acting on the endometrium after day 14.
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