Secretory phase of human menstrual cycle is also called

Options

A. Luteal phase and lasts for 8 days
B. Luteal phase and lasts for 13 days
C. Follicular phase and lasts for 13 days
D. Foolicular phase and lasts for 6 days.

Answer

**Step-by-Step Solution:**

1. **Understanding the Menstrual Cycle:**
The human menstrual cycle consists of several phases: the menstrual phase, follicular phase, ovulation, and luteal phase (also known as the secretory phase).

2. **Identifying the Secretory Phase:**
The secretory phase occurs after ovulation. During this phase, the corpus luteum forms from the remnants of the Graafian follicle and secretes hormones, primarily progesterone, which prepares the endometrium for potential implantation of a fertilized egg.

3. **Duration of the Secretory Phase:**
The luteal phase (secretory phase) typically lasts for about 13 days. This is a crucial period where the body prepares for a possible pregnancy.

4. **Choosing the Correct Answer:**
From the options provided:
- A. Luteal phase and lasts for 8 days.
- B. Luteal phase and lasts for 13 days.
- C. Thick follicular phase and lasts for 13 days.
- D. Follicular phase and lasts for 6 days.

The correct answer is **B. Luteal phase and lasts for 13 days**.

5. **Conclusion:**
Therefore, the secretory phase of the human menstrual cycle is also called the luteal phase, and it lasts for approximately 13 days.

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