SSC CGL
MediumQ. No. which-is-the-largest-lymphoid-organ-in-the-body
Which is the largest lymphoid organ in the body?
Last Updated:
AThymus
BLymph nodes
CSpleen
DTonsils
Correct Answer: SpleenYour Answer: C
Last Updated:
✅ Correct Answer: C — Spleen
The Spleen is the largest lymphoid organ in the human body, located in the upper left abdomen. Functions: (1) Filters blood and removes old/damaged RBCs, (2) Stores lymphocytes and other immune cells, (3) Acts as blood reservoir, (4) Produces antibodies, (5) Plays role in immune response against blood-borne pathogens.
❌ Why other options are wrong:
• A. Thymus — Thymus is a lymphoid organ where T-lymphocytes mature; it is smaller than spleen and located in the chest. It is largest in childhood.
• B. Lymph nodes — Lymph nodes are small bean-shaped structures scattered throughout the body; they filter lymph fluid but are much smaller than the spleen.
• D. Tonsils — Tonsils are small lymphoid tissues at the back of the throat; much smaller than the spleen.
📝 Important Note: Spleen = largest lymphoid organ (blood filter + blood reservoir + immune functions). Liver = largest internal organ overall. Skin = largest organ in body. Spleen is called the 'graveyard of RBCs'. Spleen can be removed (splenectomy) but immunity is slightly reduced. Key SSC CGL biology fact.
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