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The Basic subset of the UBERON integrated, cross-species anatomy ontology is downloaded weekly from For more information about this ontology see the "About" page on the UBERON website at

Term:immune system
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Accession:UBERON:0002405 term browser browse the term
Definition:Anatomical system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymphoid tissue, lymphocytes including the B cells and T cells, and antibodies.
Comment:[homology-note] "The antibody-based immune system defined by the presence of the major histocompatibility complex (MHC), T cell receptor (TCR), B cell receptor (BCR) or recombination activating genes (RAGs) is known beginning from jawed fishes.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0001247", ontology="VHOG", source="PMID:21046016 Dzik JM, The ancestry and cumulative evolution of immune reactions. Acta biochimica Polonica (2010)", source=""}
Synonyms:xref: AAO:0011003;   BILA:0000104;   BTO:0005810;   FMA:9825;   GAID:328;   MA:0002711;   MESH:D007107;   NCI:C12735;   SCTID:362590003;   TAO:0001159;   UMLS:C0020962;   VHOG:0001247;   Wikipedia:Immune_system;   XAO:0003152;   ZFA:0001159
 external_ontology: present_in_taxon NCBITaxon:9606

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  UBERON ontology 0
    anatomical entity 0
      material anatomical entity 0
        disconnected anatomical group 0
          non-connected functional system 0
            immune system 0
              bone marrow + 0
              immune organ + 0
              lymphoid system + 0
              reticuloendothelial system + 0
              thymus primordium + 0
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