What would most likely occur if the ovary was inhibited from releasing progesterone?

• A. The endometrial lining would fail to be maintained, leading to menstruation.
• B. Ovulation would be directly stimulated.
• C. The corpus luteum would persist indefinitely.
• D. Estrogen levels would increase dramatically.

Answer: (A)

Verified step by step guidance

1. Understand the role of progesterone: Progesterone is a hormone released by the ovary after ovulation, primarily by the corpus luteum. Its main function is to maintain the endometrial lining of the uterus, preparing it for potential implantation of a fertilized egg.
2. Analyze the scenario where progesterone release is inhibited: If the ovary does not release progesterone, the endometrial lining cannot be maintained. This would lead to its breakdown and shedding, which is the process of menstruation.
3. Consider the relationship between ovulation and progesterone: Progesterone is released after ovulation, so inhibiting its release does not directly stimulate ovulation. Ovulation is regulated by other hormones, such as luteinizing hormone (LH).
4. Evaluate the persistence of the corpus luteum: The corpus luteum forms after ovulation and secretes progesterone. If progesterone release is inhibited, the corpus luteum would not persist indefinitely; instead, it would degenerate in the absence of hormonal support.
5. Assess the impact on estrogen levels: Estrogen levels are regulated by a different mechanism and are not directly affected by the inhibition of progesterone release. Therefore, estrogen levels would not increase dramatically in this scenario.