The endometrium demonstrates the greatest thickness during which phase?

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Multiple Choice

The endometrium demonstrates the greatest thickness during which phase?

Explanation:
Endometrial thickness is greatest in the secretory phase. After ovulation, progesterone from the corpus luteum drives the endometrium to become more glandular, edematous, and richly vascular, producing its maximum thickness. The proliferative (estrogen-driven) phase increases the lining, but not to the extent seen in the secretory phase, and the menstrual phase involves shedding, yielding the thinnest lining.

Endometrial thickness is greatest in the secretory phase. After ovulation, progesterone from the corpus luteum drives the endometrium to become more glandular, edematous, and richly vascular, producing its maximum thickness. The proliferative (estrogen-driven) phase increases the lining, but not to the extent seen in the secretory phase, and the menstrual phase involves shedding, yielding the thinnest lining.

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