Mucosal folds present inside the stomach are called ……………………………

Explanation

**Step-by-Step Text Solution:**

1. **Understanding the Structure of the Stomach**: The stomach is a part of the alimentary canal, which is composed of four main layers: serosa, muscularis, submucosa, and mucosa.

2. **Identifying the Layers**:
- **Serosa**: The outermost layer, made of mesothelium, which is a thin epithelium covering visceral organs.
- **Muscularis**: This layer consists of smooth muscles arranged in two layers: an inner circular layer and an outer longitudinal layer.
- **Submucosa**: This layer is made of connective tissue and contains nerves, blood vessels, and lymph vessels.
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