What are three major types of cells found in the gastric glands? Name their secretions.

Explanation

To answer the question regarding the three major types of cells found in the gastric glands and their secretions, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Identify the Gastric Glands**: The gastric glands are located in the stomach lining and are responsible for the secretion of various substances necessary for digestion.

2. **List the Three Major Types of Cells**:
- **Mucous Cells**: These cells are responsible for secreting mucus.
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