Multiple Choice
Which lymphoid organ is primarily active during the early years of life?
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20. The Lymphatic System
Overview of Lymphoid Organs
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Which of the following is the largest lymphoid organ in the body?
A
Lymph nodes
B
Spleen
C
Thymus
D
Tonsils
Verified step by step guidance1
Understand the function of lymphoid organs: Lymphoid organs are part of the immune system and are involved in the production and maturation of lymphocytes, which are crucial for immune responses.
Identify the primary lymphoid organs: The primary lymphoid organs include the bone marrow and thymus, where lymphocytes are produced and mature.
Identify the secondary lymphoid organs: The secondary lymphoid organs include the spleen, lymph nodes, and tonsils, where lymphocytes are activated.
Compare the sizes of the lymphoid organs: The spleen is the largest lymphoid organ in the body, located in the upper left part of the abdomen, and it filters blood, recycles iron, and helps fight infections.
Conclude by identifying the largest lymphoid organ: Based on the size and function, the spleen is the largest lymphoid organ in the body.
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