Stomach layer that has mesothelium and some connective tissues is

Options

A. Serosa
B. Sub-mucosa
C. Mucosa
D. Muscularis

Answer

To answer the question about which stomach layer has mesothelium and some connective tissues, we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Identify the Layers of the Stomach**:
- The stomach consists of four main layers:
- **Serosa** (outermost layer)
- **Muscularis** (middle layer)
- **Submucosa** (layer beneath the mucosa)
- **Mucosa** (innermost layer)

2. **Understand the Composition of Each Layer**:
- **Serosa**: This is the outermost layer and is composed of mesothelium (a type of epithelium) and connective tissue. The mesothelium serves as a protective layer for the stomach and other internal organs.
- **Muscularis**: This layer consists of smooth muscle tissues and does not contain mesothelium or connective tissue.
- **Submucosa**: This layer is primarily made up of loose connective tissue but does not have mesothelium.
- **Mucosa**: The innermost layer, which contains epithelial cells and glands, but lacks mesothelium and connective tissue.

3. **Determine Which Layer Contains Both Mesothelium and Connective Tissue**:
- From the analysis, the **serosa** is the only layer that contains both mesothelium and connective tissue.

4. **Conclusion**:
- Therefore, the stomach layer that has mesothelium and some connective tissues is the **serosa**.

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

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