Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… … Wikipedia
immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… … Universalium
immune system disorder — Introduction Disorders of the immune systemany of various failures in the body s defense mechanisms against infectious organisms (see table (Disorders of the immune system)). Disorders of immunity include immune deficiency diseases, such… … Universalium
immune system — noun a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response • Hypernyms: ↑system • Part Meronyms: ↑marrow, ↑bone marrow,… … Useful english dictionary
Immune response — Any reaction by the immune system. * * * immune response n a bodily response to an antigen that occurs when lymphocytes identify the antigenic molecule as foreign and induce the formation of antibodies and lymphocytes capable of reacting with it… … Medical dictionary
system — systemless, adj. /sis teuhm/, n. 1. an assemblage or combination of things or parts forming a complex or unitary whole: a mountain system; a railroad system. 2. any assemblage or set of correlated members: a system of currency; a system of… … Universalium
system — [[t]sɪ̱stəm[/t]] ♦ systems 1) N COUNT: usu with supp A system is a way of working, organizing, or doing something which follows a fixed plan or set of rules. You can use system to refer to an organization or institution that is organized in this… … English dictionary
Immune privilege — is a term used to describe certain sites in the body which are able to tolerate the introduction of antigen without eliciting an inflammatory immune response. Tissue grafts are normally recognised as foreign antigen by the body and attacked by… … Wikipedia
Immune tolerance in pregnancy — or gestational/maternal immune tolerance is the absence of a maternal immune response against the fetus and placenta, which thus may be viewed as unusually successful allografts, since they genetically differ from the mother.[1] In the same way,… … Wikipedia
Immune tolerance — or immunological tolerance is the process by which the immune system does not attack an antigen.[1] It can be either natural or self tolerance , in which the body does not mount an immune response to self antigens, or induced tolerance , in which … Wikipedia
