Illustration of red blood cells. Red blood cells are biconcave, disc shaped cells, crucial for the transportation of oxygen around the blood. Red blood cells also remove carbon dioxide to the lungs for exhalation. Their red colour is due to the oxygen-carrying protein haemoglobin. | |
Licence : | Libre de droits |
Crédit: | Science Photo Library / NOBEASTSOFIERCE |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |