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Multiple Choice
Which of the following is NOT a part of the proliferative phase of the female menstrual cycle?
A
Ovulation
B
Increased estrogen secretion
C
Growth of endometrial glands
D
Regeneration of the endometrial lining
Verified step by step guidance
1
Understand the phases of the menstrual cycle: The menstrual cycle is divided into four phases—menstrual, proliferative, ovulatory, and secretory. The proliferative phase occurs after menstruation and before ovulation, focusing on the regeneration and preparation of the endometrium.
Identify the key events of the proliferative phase: During this phase, estrogen levels rise, stimulating the regeneration of the endometrial lining and the growth of endometrial glands. These changes prepare the uterus for potential implantation of a fertilized egg.
Clarify the role of ovulation: Ovulation is a distinct event that occurs after the proliferative phase. It marks the release of an egg from the ovary and is part of the ovulatory phase, not the proliferative phase.
Compare the options provided: Analyze each option to determine whether it aligns with the proliferative phase. Increased estrogen secretion, growth of endometrial glands, and regeneration of the endometrial lining are all characteristic of the proliferative phase. Ovulation, however, is not part of this phase.
Conclude the reasoning: Based on the analysis, ovulation is the correct answer because it does not occur during the proliferative phase but rather during the ovulatory phase.