Healthy and Damanged Neurons (IMAGE) Harvard University Caption Left: A healthy neuron, with its dendrites and axon intact. Right: The damaged neuron has retracted its arms, breaking essential connections with its neighbors. Credit Photo courtesy of Matthew Hemphill, Borna Dabiri, and Sylvain Gabriele. Usage Restrictions None 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.