Multiple Choice
Which of the following options correctly represents the flow of lymph through a lymph node?
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20. The Lymphatic System
Secondary Lymphoid Organs: Lymph Nodes
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Which of the following is not a secondary lymphoid organ?
A
Thymus
B
Tonsils
C
Spleen
D
Lymph nodes
Verified step by step guidance1
Understand the difference between primary and secondary lymphoid organs. Primary lymphoid organs are where lymphocytes are formed and mature, while secondary lymphoid organs are where lymphocytes become activated.
Identify the primary lymphoid organs. The primary lymphoid organs include the bone marrow and the thymus, where lymphocytes (B cells and T cells) mature.
Recognize the secondary lymphoid organs. These include the lymph nodes, spleen, tonsils, and other mucosa-associated lymphoid tissues (MALT), where lymphocytes are activated by antigens.
Review the list of options provided: Thymus, Tonsils, Spleen, and Lymph nodes.
Determine which organ is a primary lymphoid organ. The thymus is a primary lymphoid organ, while the tonsils, spleen, and lymph nodes are secondary lymphoid organs.
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