• Science & Mathematics >
  • Medicine
  • Science & Mathematics >
  • Medicine

What is the difference between primary and secondary lymphoid organs?

  • Follow publicly
  • Follow privately
  • Unfollow
Best Answer
Primary lymphoid organs like bone marrow and thymus have differentiating lymphocytes while secondary lymphoid organs like tonsils have differentiated lymphocytes.
  • 1
  • Comment

Other Answers (2)

  • Relevance
  • Rating
  • Oldest
  • Newest
  • Abdisalam answered 10 months ago
    primary or central lymphoid organs are Bone marrow and Thymus which serve as sites of production and maturation of lymphocytes. In contrast, Secondary or peripheral lymphoid organs are spleen, lymph nodes,appendix,Tonsils,payer's patch,Adenoids and et cetera ..they serve as the site of housing and secreting of lymphocytes when they are needed.
    • 0
    • Comment
  • Parul answered 3 years ago
    Lymphoid organs form part of the body’s immune system. Lymphoid organs defend the body against invading pathogens that cause infections or spread of tumors. These organs exist as primary, secondary or tertiary, based on the stage of lymphocyte development and maturation the organ is involved in.
    The primary lymphoid organs serve to generate lymphocytes from immature progenitor cells. Progenitor cells possess the capacity to differentiate into a specific cell type. Progenitor cells divide for a limited number of times, depending on the need of the body.
    Secondary lymphoid organs take charge of maintaining mature but naive lymphocytes. These organs initiate adaptive immune response.
    Examples of secondary or peripheral lymphoid organs include adenoids, the tonsils, lymph nodes, Peyer’s patches, the spleen, and even the skin, among others.


    • 2
    • Comment
  • what is the difference between primary and secondary lymphoid organs?
    Sign in 

    to add your answer


Who is following this question?

    Member since:
    Points: Points: Level
    Total answers:
    Points this week: