What distinguishes the proliferative phase of the uterine cycle from the secretory phase following ovulation?

💡 Explanation

During the proliferative phase, estrogen stimulates endometrial thickening because this mechanism prepares the uterus for potential implantation; therefore, the key difference is estrogen-driven growth, rather than progesterone effects dominant in the secretory phase or hormonal events linked to the luteal phase.

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