Which chamber of ruminant stomach has gastric juice (HCL+ Pepsin )/true stomach

Options

A. Omasum
B. Abomasum
C. Rumen
D. Reticulum

Answer

To answer the question regarding which chamber of the ruminant stomach contains gastric juice (HCl and pepsin) and is referred to as the true stomach, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding Ruminant Stomach Structure**:
- Ruminants have a specialized stomach structure that consists of four chambers: the rumen, reticulum, omasum, and abomasum. Each chamber has a distinct function in the digestion process.

2. **Identifying the True Stomach**:
- Among these four chambers, the abomasum is known as the "true stomach." This is where the digestion of proteins occurs with the help of gastric juices.

3. **Composition of Gastric Juice**:
- Gastric juice is primarily composed of hydrochloric acid (HCl) and pepsin. HCl creates an acidic environment that is necessary for pepsin, a proteolytic enzyme, to function optimally in breaking down proteins.

4. **Role of the Abomasum**:
- The abomasum serves the same purpose as the stomach in non-ruminant animals. It is responsible for the enzymatic digestion of food, particularly proteins, due to the presence of gastric juices.

5. **Conclusion**:
- Therefore, the chamber of the ruminant stomach that contains gastric juice (HCl and pepsin) and is known as the true stomach is the **abomasum**.

### Final Answer:
The chamber of the ruminant stomach that has gastric juice (HCl + Pepsin) and is referred to as the true stomach is the **abomasum**.

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