(IMAGE) Institute of Science and Technology Austria Caption Co lour code: dendrite and spiny excrescences in blue, bouton in transparent yellow, mitochondria in white, synaptic vesicles in green and dense-core vesicles in magenta. Credit Courtesy of Astrid Rollenhagen and Joachim Lübke; for details see Rollenhagen et al., J. Neurosci. 27: 10434-10444 (2007). 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.