Stomach layer that has mesothelium and some connective tissues is

Options

A. serosa
B. sub-mucosa
C. mucosa
D. muscularis

Answer

To determine the stomach layer that contains mesothelium and some connective tissue, we can analyze the four layers of the alimentary canal:

1. **Identify the Layers of the Stomach**: The stomach wall consists of four main layers:
- Serosa
- Muscularis
- Submucosa
- Mucosa

2. **Understand the Composition of Each Layer**:
- **Serosa**: This is the outermost layer of the stomach. It is composed of a thin layer of mesothelium (a type of epithelium) and some connective tissue. The mesothelium is the epithelium of visceral organs.
- **Muscularis**: This layer is made up of smooth muscle tissue organized into inner circular and outer longitudinal layers. It does not contain mesothelium.
- **Submucosa**: This layer consists of loose connective tissue, which contains nerves, blood vessels, and lymph vessels. It does not have mesothelium.
- **Mucosa**: This is the innermost layer of the stomach, which includes irregular folds known as rugae. It is primarily made up of epithelial tissue and does not contain mesothelium.

3. **Conclusion**: Since the question specifically asks for the layer that contains mesothelium and some connective tissue, the correct answer is the **serosa**.

**Final Answer**: The stomach layer that has mesothelium and some connective tissues is **A. Serosa**.

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