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1. the lymphoid tissue is divided into lymphoid organs, vessels
and lymphatic
2. in lymphoid tissue, precursors of lympho- primary
cytes are produced and mature into immunocom-
petent T and B lymphocytes - bone marrow and
thymus
3. in lymphoid tissue, mature lymphocytes secondary
reside, and mediate their responses to antigens -
spleen, lymph nodes, and MALT
4. the main surface markers in b-lymphocytes in- IgD, IgM, MHC II
cludes:
5. mature b lymphocytes and mature t lymphocytes secondary lymphoid tissues
reside at the
6. the main surface markers in t-lymphocytes in- CD4, CD8, TcR
cludes:
7. in MHC I, restricted T cells CD4 and are called lose
CD8+ cells (cytotoxic)
8. in MHC II, restricted T cells CD8 and are lose
called CD4+ cells (helper/regulatory)
9. The activation of Th1 includes IFN-gamma, IL-12
10. The activation of Th2 includes IL-4, IL-2
11. The activation of Th17 includes TGF-beta, IL-6, IL-21
12. The activation of Tfh includes IL-4, IL-21
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