Confocal imaging (IMAGE) Chapman University Caption Confocal imaging of postmortem mouse brain section showing aged red blood cells in red, brain capillaries in green, and brain immune cells (microglia) in blue. Asterisks show red blood cells that have migrated into the brain tissue and arrow shows microglia enveloping a brain capillary stall. Credit Rachita Sumbria Usage Restrictions NA License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.