Human Neuron (image) University of California - San Diego Share Print E-Mail Caption This is a human neuron showing actin formation in response to stimulation. Credit Michael A. Colicos, UC San Diego Usage Restrictions Use credit as indicated. Share Print E-Mail 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.