Maternal Newborn Nursing Practice Questions Related

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During which stage of the menstrual cycle does the endometrium layer thicken?

  • A. Proliferative phase
  • B. Ovulation phase
  • C. Luteal phase
  • D. Secretory phase
Correct Answer: D

Rationale: The endometrium layer thickens during the secretory phase of the menstrual cycle. This phase occurs after ovulation and is characterized by the endometrium preparing for possible implantation of a fertilized egg by further thickening and becoming more vascularized. If pregnancy does not occur, the thickened endometrial lining will be shed during menstruation. The secretory phase is under the control of the hormone progesterone, which is produced by the corpus luteum formed in the ovary after ovulation.