The spleen is the largest organ of the:

The spleen is the largest organ of the:

• A. Lymphatic system
• B. Nervous system
• C. Endocrine system
• D. Digestive system

Answer: (A)

In the lymphatic system, the spleen is the largest organ because it contains a large amount of lymphoid tissue and serves major immune functions. The spleen houses white pulp, rich in lymphocytes, which detect and respond to blood-borne pathogens, and red pulp, where old or damaged red blood cells are filtered and macrophages remove them. This combination of extensive immune tissue and blood filtration makes the spleen the largest organ associated with the lymphatic system, unlike organs in the nervous, endocrine, or digestive systems, which have different primary roles.

In the lymphatic system, the spleen is the largest organ because it contains a large amount of lymphoid tissue and serves major immune functions. The spleen houses white pulp, rich in lymphocytes, which detect and respond to blood-borne pathogens, and red pulp, where old or damaged red blood cells are filtered and macrophages remove them. This combination of extensive immune tissue and blood filtration makes the spleen the largest organ associated with the lymphatic system, unlike organs in the nervous, endocrine, or digestive systems, which have different primary roles.