In anatomy the term<unk> " (abbreviated<unk> , often associated nowadays with the mononuclear phagocyte system (MPS), was originally launched by the beginning of the 20th century to denote a system of specialised cells that effectively clear colloidal vital stains (so called because they stain living cells) from the blood circulation. The term is still used today, but its meaning has changed over the years, and is used inconsistently in present-day literature. Although<unk>  is commonly associated exclusively with macrophages, recent<unk> earch has revealed that the cells that accumulate intravenously administrated vital stain belong to a highly specialised group of cells called scavenger endothelial cells (SECs), that are not macrophages.
Reticuloendothelial system
Enteric nervous system
Integumentary system
Endocrine system
Peripheral nervous system
Autonomic nervous system
Mononuclear phagocyte system
Urinary system