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|Antigen-presenting cells |Cells which do not have antigen-specific receptors. Instead, they capture and |
| |process antigens, present them to T cell receptors. These cells include |
| |macrophages, dentritic cells and B cells. |
|B cells |Also known as B cell lymphocytes. |
| | |
| |B cells spend their entire early life in the bone marrow. Upon maturity, their |
| |job is to travel throughout the blood and lymph looking for antigens with which |
| |they can interlock. |
| | |
| |Once a B cell has identified an antigen, it starts replicating itself. These |
| |cloned cells mature into antibody-manufacturing plasma cells. |
|Basophils |Similar to mast cells, but distributed throughout the body. Like mast cells, |
| |basophils release histamine upon encountering certain antigens, thereby |
| |triggering an allergic reaction. |
|Cytotoxic T cells |Also called cytotoxic T lymphocytes or CTLs. |
| | |
|Dendritic cells |Mostly found in the skin and mucosal