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Definition of Mononuclear phagocyte system
1. Noun. A widely distributed system of free and fixed macrophages derived from bone marrow.
Exact synonyms: Mps, System Of Macrophages
Generic synonyms: System
Group relationships: Res, Reticuloendothelial System
Generic synonyms: System
Group relationships: Res, Reticuloendothelial System
Medical Definition of Mononuclear phagocyte system
1. A widely distributed collection of both free and fixed macrophages derived from bone marrow precursor cells by way of monocytes; their substantial phagocytic activity is mediated by immunoglobulin and the serum complement system. In both connective and lymphoid tissue, they may occur as free and fixed macrophages; in the sinusoids of the liver, as Kupffer cells; in the lung, as alveolar macrophages; and in the nervous system, as microglia. Synonym: system of macrophages. (05 Mar 2000)