Cells2 - Cells, organs and tissues of the immune system...

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Cells, organs and tissues of the immune system Lymphoid cells Lymphoid Cells: Antigen specific Cells Mature cells of the lymphoid lineage - lymphocytes - are activated when they interact via a cell- surface receptor with the cognate antigen This always occurs in conjunction with other cell types, termed accessory cells. Activation results in the generation of an immune response targeted at that antigen only. Lymphocytes are found in blood, lymph, all lymphoid tissue They are not found in non-lymphoid tissue except when there is inflammation occurring Different Types of Lymphocyte Two main antigen-responsive types: o B (bone marrow-derived) lymphocytes (B cells) o T (thymus-derived) lymphocytes (T cells) A third type is NOT antigen responsive o Large granular lymphocytes (LGL) Lymphocyte Function B cells make antibodies & are responsible for humoral immunity response (HIR); T cells help B cells and are responsible for cell-mediated immunity (CMI) o antigen-specific killer cells etc
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Cells2 - Cells, organs and tissues of the immune system...

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