Which of the following is NOT a lymphatic organ?

• A. Spleen
• B. Thymus
• C. Liver
• D. Tonsils

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the lymphatic system and its primary functions. The lymphatic system is responsible for maintaining fluid balance, filtering lymph, and supporting immune responses. It includes organs, tissues, and vessels that work together to perform these functions.
2. Step 2: Identify the major lymphatic organs. These include the spleen, thymus, tonsils, and lymph nodes. Each of these organs plays a specific role in filtering lymph, producing immune cells, or supporting immune function.
3. Step 3: Examine the liver's role in the body. The liver is not part of the lymphatic system; it is primarily involved in metabolism, detoxification, and the production of bile. While it interacts with the immune system, it is not classified as a lymphatic organ.
4. Step 4: Compare the listed options (spleen, thymus, liver, tonsils) to determine which one does not belong to the lymphatic system. The spleen filters blood and supports immune responses, the thymus is involved in T-cell maturation, and the tonsils trap pathogens entering through the mouth and throat.
5. Step 5: Conclude that the liver is NOT a lymphatic organ based on its distinct functions unrelated to the lymphatic system.