The glandular tissue of each breast is divided into..........mammary lobes.

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of the Breast:**
- The breast is composed of glandular tissue, which is responsible for milk production.

2. **Identifying the Division of Glandular Tissue:**
- The glandular tissue in each breast is organized into smaller functional units known as mammary lobes.

3. **Determining the Number of Mammary Lobes:**
- Each breast typically contains about 15 to 20 mammary lobes.

4. **Function of Mammary Lobes:**
- These mammary lobes serve as the sites for milk production. They further contain smaller structures called alveoli, which are responsible for secreting milk.

5. **Conclusion:**
- Therefore, the glandular tissue of each breast is divided into **15 to 20 mammary lobes**.

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