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Overview of Lymphoid Organs quiz

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  • Which lymphoid organ is primarily active during the early years of life?
    The thymus is primarily active during the early years of life.
  • What is the function of each lymphoid organ?
    Primary lymphoid organs (thymus and red bone marrow) are where T and B cells mature, while secondary lymphoid organs (lymph nodes, spleen, MALT) are where these cells encounter antigens and participate in immune responses.
  • Which of these lymphoid organs is the thymus?
    The thymus is a primary lymphoid organ where T cells develop and mature.
  • What is the largest lymphoid organ in the body?
    Spleen is the largest lymphoid organ in the body.
  • Which organ is not classified as a lymphoid organ: thymus, spleen, liver, or lymph nodes?
    Liver would not be classified as a lymphoid organ.
  • Where do T cells mature and become immunocompetent?
    T cells mature and become immunocompetent in the thymus.
  • What is the role of secondary lymphoid organs?
    Secondary lymphoid organs are where T and B cells first encounter antigens and actively participate in immune responses.
  • What are MALT and where are they found?
    MALT, or mucosal-associated lymphoid tissues, include tonsils and Peyer's patches, found in the head and digestive system respectively.
  • What happens to T and B cells after they mature in primary lymphoid organs?
    After maturing, T and B cells migrate to secondary lymphoid organs where they encounter antigens and participate in immune responses.