Secondary (or peripheral) lymphoid tissues can also be referred to as lymphoid organs. They provide a site for immune responses to occur and are populated by relatively mature [[:Category:Lymphocytes|T cells and B cells]], [[Macrophages|macrophages]] and [[T cell differentiation|dendritic cells]] with each tissue providing a different environment. | Secondary (or peripheral) lymphoid tissues can also be referred to as lymphoid organs. They provide a site for immune responses to occur and are populated by relatively mature [[:Category:Lymphocytes|T cells and B cells]], [[Macrophages|macrophages]] and [[T cell differentiation|dendritic cells]] with each tissue providing a different environment. |