An antigen presenting cell (APC) is a cell that displays foreign An antigen is any molecule that is recognized by antibodies. ...antigen complexed with In health care, managed health care is the idea that the service that is provided by a hospital or other group of clinics may be managed by an external company. ...MHC on its surface. T_cells may recognize this complex using their T_cell receptor (TCR).

Three main types of APC exist: Dendritic cells (DC) are immune cells and form part of the mammal immune system. ...dendritic cells, Macrophages (Greek: big eaters) are cells found in tissues that are responsible for phagocytosis of pathogens, dead cells and cellular debris. ...macrophages and B_cells.