In man the zymogen or chief cells are mainly found in

Options

A. Cardiac part of stomach
B. Pyloric part of stomach
C. Duodenum
D. Fundic part of stomach

Answer

**Step-by-Step Solution:**

1. **Understanding Zymogen or Chief Cells**: Zymogen or chief cells are specialized cells in the stomach that secrete pepsinogen, the inactive form of the enzyme pepsin, which is crucial for protein digestion.

2. **Location of Chief Cells**: These cells are primarily located in the gastric glands of the stomach. They are found at the base of the gastric pits, which are the openings of the gastric glands.

3. **Regions of the Stomach**: The stomach is divided into several regions: the cardiac region (near the esophagus), the fundic region (the main body of the stomach), the pyloric region (near the small intestine), and the duodenum (the first part of the small intestine).

4. **Identifying the Correct Region**: The question asks where chief cells are mainly found. While they are present in various parts of the stomach, they are most abundant in the cardiac region. They are not predominantly found in the pyloric region or the duodenum.

5. **Conclusion**: Therefore, the correct answer to the question is that zymogen or chief cells are mainly found in the cardiac part of the stomach.

**Final Answer**: The zymogen or chief cells are mainly found in the cardiac part of the stomach.

---