The secretory phase of the menstrual cycle is also called the ................... because it is controlled by the hormone ............

Explanation

**Step-by-Step Solution:**

1. **Understanding the Menstrual Cycle**: The menstrual cycle consists of several phases, including the follicular phase, ovulation, and the secretory phase.

2. **Identifying the Secretory Phase**: The secretory phase occurs after ovulation. During this phase, the endometrium (the lining of the uterus) prepares for a potential implantation of a fertilized egg.

3. **Naming the Secretory Phase**: The secretory phase is also known as the **luteal phase**. This name is derived from the corpus luteum, which forms from the remnants of the Graafian follicle after ovulation.

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