Neuron Group (IMAGE) University of Washington Caption These are digital reconstructions of three neurons from a mouse brain. The neuron's dendrites, in red, receive chemical signals from other cells. The neuron's axon, in blue, sends electrical impulses out to other cells. Credit Allen Institute for Brain Science Usage Restrictions with credit License Licensed 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.