Peyer's patches found in the small intestine are

Options

A. Lymphatic tissue
B. Glandular tissue
C. Epithelial tissue
D. Hepatic tissue

Answer

**Step-by-Step Solution:**

1. **Understanding Peyer's Patches**:
- Peyer's patches are small masses of lymphatic tissue found in the small intestine, specifically in the ileum region. They play a crucial role in the immune response.

2. **Classification of Lymphoid Organs**:
- Lymphoid organs are classified into two types: primary and secondary lymphoid organs. Primary lymphoid organs are where lymphocytes are produced and mature (e.g., bone marrow and thymus), while secondary lymphoid organs are where lymphocytes are activated and proliferate.

3. **Identifying Peyer's Patches**:
- Peyer's patches are classified as secondary lymphoid organs. They contain lymphoid follicles that help in the immune surveillance of intestinal bacteria and other antigens.

4. **Function of Peyer's Patches**:
- The primary function of Peyer's patches is to monitor intestinal bacteria populations and prevent the growth of pathogenic bacteria in the intestines. They capture antigens and present them to immune cells, thus playing a vital role in the body's defense mechanism.

5. **Conclusion**:
- Based on the classification and function of Peyer's patches, they are identified as lymphoid tissue associated with the immune system in the small intestine.

**Final Answer**: Peyer's patches found in the small intestine are secondary lymphoid organs.

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