Alzheimer's Disease Plaques and Tangles (IMAGE) University of California - San Diego Caption This is a micrograph of amyloid plaques and neurofibrillary tangles in human brain. Credit Thomas Deerinck/National Center for Microscopy and Imaging Research at UC San Diego Usage Restrictions Use image credit as indicated 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.