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Which of the following is a primary lymphoid organ?Lymph nodesBone marrowSpleenLymphatic vessels

Question

Which of the following is a primary lymphoid organ?

  • Lymph nodes
  • Bone marrow
  • Spleen
  • Lymphatic vessels
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Solution

Identifying the Primary Lymphoid Organ

  1. Understanding Lymphoid Organs

    • Lymphoid organs are of two types: primary and secondary. Primary lymphoid organs are where lymphocytes are produced and matured, while secondary lymphoid organs are where these cells mount an immune response.
  2. Options Provided

    • Lymph nodes
    • Bone marrow
    • Spleen
    • Lymphatic vessels
  3. Analysis of Each Option

    • Lymph nodes: These are secondary lymphoid organs where immune responses occur.
    • Bone marrow: This is a primary lymphoid organ; it is where B cells mature and where T cells are produced.
    • Spleen: Like lymph nodes, the spleen is a secondary lymphoid organ involved in filtering blood and housing immune cells.
    • Lymphatic vessels: These are not lymphoid organs; they are part of the lymphatic system that transports lymph.

Final Answer

The primary lymphoid organ from the options provided is Bone marrow.

This problem has been solved

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