Larval brain (IMAGE) University of Münster Caption Cross-section through a larval brain. Shown in green are the enveloping glial cells that were investigated in the study by Nicole Pogodalla et al. They completely enclose the central neuropil. All neuronal membranes are marked in blue, the glial cell nuclei in magenta. Credit WWU - Nicole Pogodalla und Christian Klämbt Usage Restrictions The use of the image is permitted exclusively in connection with this press release and with reference to the source. 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.