The irregular, elongated gland in between stomach and duodenum is 

Options

A. mixed gland
B. endocrine gland
C. exocrine gland
D. none

Answer

**Step-by-Step Solution:**

1. **Identify the Gland**: The question asks for the irregular, elongated gland located between the stomach and the duodenum. The gland in question is the pancreas.

2. **Understand the Structure**: The pancreas has an irregular and elongated shape, which distinguishes it from other glands in the body.

3. **Functions of the Pancreas**: The pancreas serves two primary functions:
- **Exocrine Function**: It produces digestive enzymes that are secreted into the duodenum to aid in the digestion of food.
- **Endocrine Function**: It produces hormones such as insulin and glucagon, which are important for regulating blood sugar levels.

4. **Classification of the Gland**: Given that the pancreas has both exocrine and endocrine functions, it is classified as a mixed gland. This means it has both ducted (exocrine) and ductless (endocrine) components.

5. **Conclusion**: Therefore, the correct answer to the question is that the irregular, elongated gland between the stomach and duodenum is a mixed gland, specifically the pancreas.

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