T lymphocyte. Coloured scanning electron micrograph (SEM) of a T lymphocyte white blood cell,or T cell,surrounded by fibrin strands. Like all white blood cells,T cells are components of the body's immune system. They recognise a specific site on the surface of pathogens or foreign objects (antigens) and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. Magnification: x12,300 when printed at 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4540 px × 3898 px |
Model Release : | Non requis |
Restrictions : | - |