Seeing the Brain's Drains. (IMAGE) Medical University of South Carolina Caption MRI showing the dorsal flow of the brain's waste-clearance system. Credit Dr. Onder Albayram, Medical University of South Carolina Usage Restrictions Approved for use with articles or social media related to this release or the original article 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.