| NOUN | body | immune system | a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign / foreign substances and pathogenic organisms by producing the immune response |
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| Meaning | A system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign / foreign substances and pathogenic organisms by producing the immune response. | |
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| Parts | lymph node, lymph gland, node | The source of lymph and lymphocytes |
| marrow, bone marrow | The fatty network of connective tissue that fills the cavities of bones | |
| reticuloendothelial system, RES | A widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells | |
| thymus gland, thymus | A ductless glandular organ at the base of the neck that produces lymphocytes and aids in producing immunity | |
| Broader | system | A group of physiologically or anatomically related organs or parts |
| Spanish | sistema inmunitario, sistema inmunológico | |
| Catalan | sistema immunitari | |
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