Macrophages. Coloured scanning electron micrograph (SEM) of macrophage white blood cells.The central macrophage is activated. Macrophages are cells of the body's immune system. They are found in the tissues rather than in the circulating blood. Macrophages recognise foreign particles, including bacteria, pollen and dust, and phagocytose (engulf) and digest them. Magnification: x4000 when printed at 10 centimetres wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 4764 px × 3669 px |
Model Release : | Non requis |
Restrictions : | - |