Progesterone attains peak level in which phase of menstrual cycle?

Options

A. Bleeding phase
B. Proliferative phase
C. Luteal phase
D. Follicular phase

Answer

**Step-by-Step Solution:**

1. **Understand the Menstrual Cycle Phases**: The menstrual cycle consists of four main phases:
- Menstrual Phase
- Proliferative Phase (also known as Follicular Phase)
- Ovulatory Phase
- Secretory Phase (also known as Luteal Phase)

2. **Identify the Role of Progesterone**: Progesterone is a steroid hormone that plays a crucial role in preparing the uterus for potential pregnancy after ovulation.

3. **Locate the Peak Level of Progesterone**:
- During the **Secretory Phase**, which follows ovulation, the corpus luteum (formed from the ruptured follicle) secretes progesterone.
- This hormone reaches its peak level during this phase, as it is essential for maintaining the uterine lining.

4. **Conclusion**: Therefore, the peak level of progesterone occurs during the **Secretory Phase** of the menstrual cycle.

**Final Answer**: Progesterone attains peak level in the Secretory Phase of the menstrual cycle.

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