reticuloendothelial system


reticuloendothelial system

noun

Definition of RETICULOENDOTHELIAL SYSTEM

:  mononuclear phagocyte system; broadly :  the mononuclear phagocyte system plus certain other cells now known to be pinocytic or only weakly phagocytic

First Known Use of RETICULOENDOTHELIAL SYSTEM

circa 1923

reticuloendothelial system

noun    (Medical Dictionary)

Medical Definition of RETICULOENDOTHELIAL SYSTEM

: mononuclear phagocyte system; broadly : a system of cells of varying lineage that were originally grouped together because of their supposed phagocytic properties based on their ability to take up the vital dye trypan blue and comprising cells of the mononuclear phagocyte system and cells (as sinusoidal endothelial cells) now known to be pinocytotic or only weakly phagocytic

reticuloendothelial system

noun    (Concise Encyclopedia)

Part of the body's defenses, consisting of a class of cells widely distributed in the body. Reticuloendothelial cells filter out and destroy bacteria, viruses, and foreign substances and destroy worn-out or abnormal cells and tissues. Precursor cells in bone marrow develop into monocytes (see leukocyte), which are released into the bloodstream. Most enter body tissues, developing into much larger cells called macrophages, with different appearances in various locations. Some roam through the circulation and between cells and can coalesce into a single cell around a foreign object to engulf it. Reticuloendothelial cells also interact with lymphocytes in immune reactions. Cells in the spleen destroy old red blood cells and recycle their hemoglobin; uncontrolled, this process causes anemia. Tumours of the reticuloendothelial system can be localized or widespread throughout the body. See also lymphatic system.

Variants of RETICULOENDOTHELIAL SYSTEM

reticuloendothelial system or macrophage system or mononuclear phagocyte system

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