False-colour transmission electron micrograph (TEM) of a human monocyte,a type of white blood cell. Monocytes appear to have little function in blood,but are highly mobile & migrate into tissues where they are known as macrophages. In addition to scavenging & engulfing (phagocytosing) cellular debris & microorganisms,a macrophage is capable of processing antigenic (foreign) substances during the initial phase of immune response. Processed antigens are presented on the macrophage's surface for recognition & elimination by other white cells. Magnification: x12,150 at 6x7cm size,x5,400 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CNRI |
Bildgröße: | 3551 px × 2744 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |