Blood cells, illustration
Bildnummer 12935470
| White blood cell with red blood cells, computer illustration. White blood cells (leucocytes) are rounded cells with microvilli projections from the cell surface. These microvilli may assist in cell motility. Lymphocytes are involved in the immune response, acting to protect the body against infection. Two main types of lymphocyte occur in the human body: T-cells and B-cells. T- cells (thymus-derived) track down and help to actively destroy foreign bodies. B-cells (bone marrow derived) identify foreign microorganisms and then make antibodies. The disc- shaped red blood cells (erythrocytes), transport oxygen to the body cells and remove carbon dioxide to the lungs. | |
| Lizenzart: | Lizenzfrei |
| Credit: | Science Photo Library / Kon, Kateryna |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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