Cell-mediated immune response to bacteria,computer artwork. In the background,an invading bacterial cell (brown) is phagocytosed (engulfed) by a macrophage,a type of white blood cell. Fragments of protein (antigen) from the bacterial cell are then displayed on the macrophage's surface (foreground). The antigen can be recognised by helper T lymphocytes,which secrete chemicals such as cytokines to activate other immune cells,including macrophages and cytotoxic T lymphocytes,which eliminate the pathogen | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Vernon, Tim |
Bildgröße: | 7000 px × 2625 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |