Crenated red blood cell. Coloured scanning electron micrograph (SEM) of a section through the tissue between a blood vessel (lower right) and the lung (top), showing a crenated red blood cell (erythrocyte, centre). Crenation is caused by dehydration, which distorts the cell. Healthy red blood cells (round, lower right) can also be seen inside the blood vessel.
Model release not required. Property release not required.