The most important center of lymph formation is `-`

Options

A. Liver
B. Spleen
C. Bone marrow
D. Mucosa of ileum

Answer

**Step-by-Step Solution:**

1. **Understanding Lymph Formation:**
- Lymph formation is closely associated with the immune system, particularly the production of white blood cells (WBCs).

2. **Analyzing the Options:**
- **Liver:** The liver is primarily involved in the filtration of blood and metabolism of drugs, not lymph formation. Therefore, this option is incorrect.
- **Spleen:** The spleen plays a crucial role in the immune response and is a significant site for the formation and maturation of lymphocytes (a type of WBC). This makes it a strong candidate for the correct answer.
- **Bone Marrow:** Bone marrow is responsible for the production of blood cells, including red blood cells and some white blood cells, but it is not the primary site for lymph formation. Thus, this option is also incorrect.
- **Mucosa of the Intestine:** The mucosa contains Peyer's patches, which are involved in the immune response but are not the main center for lymph formation. This option is incorrect as well.

3. **Conclusion:**
- After evaluating all the options, the most important center of lymph formation is the **spleen**.

**Final Answer:** The most important center of lymph formation is the **spleen**.

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