Computer graphic image of a T-cell
Numéro d’image : 11869645
| T-lymphocyte. Computer graphic image of a T- lymphocyte,also known as a T-cell. T-cells are white blood cells which play an important role in the human immune system. They are divided into three main groups: killer cells,helper and suppressor cells. Killer cells are stimulated by the presence of foreign bodies such as viruses; they travel and attach to these foreign cells destroying them by releasing chemicals known as lymphokines. Helper cells enhance the activities of the killer T-cells whereas suppressor T-cells have the effect of switching off the immune system | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Pasieka, Alfred |
| Taille de l’image : | 3543 px × 2629 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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