In duodenum glands are present in____

Answer

**Step-by-Step Solution:**

1. **Identify the Glands in the Duodenum**: The question asks about the glands present in the duodenum. The specific glands found in this part of the small intestine are known as Brunner's glands.

2. **Location of Brunner's Glands**: Brunner's glands are located in the submucosa layer of the duodenum. This is important to note as it distinguishes them from other types of glands that may be found in different layers of the intestinal wall.

3. **Function of Brunner's Glands**: The primary function of Brunner's glands is to secrete a mucoid fluid. This fluid plays a crucial role in protecting the mucosal layer of the duodenum from the acidic chyme that is released from the stomach.

4. **Conclusion**: Therefore, the correct answer to the question "In duodenum glands are present in____" is Brunner's glands, which are found in the submucosa layer of the duodenum.

**Final Answer**: Brunner's glands are present in the submucosa layer of the duodenum.

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