title: Cellular aspects of humoral immune responsiveness in Chelydra.
mesh_terms: D000818:Animals; D007109:Immunity; D007111:Immunity, Cellular; D008214:Lymphocytes / Q000276:immunology / Q000648:ultrastructure; D008264:Macrophages / Q000276:immunology / Q000648:ultrastructure; D008854:Microscopy, Electron; D009000:Monocytes / Q000276:immunology / Q000648:ultrastructure; D013154:Spleen / Q000276:immunology / Q000648:ultrastructure; D014426:Turtles / Q000276:immunology*