Granule cells and mossy fibers (IMAGE) Harvard Medical School Caption An image of two granule cells (light and dark blue) connected to three mossy fibers (red, pink, and yellow) in the mouse cerebellum. Researchers discovered that granule cells selectively connect to mossy fibers, with more granule cells connecting to the same mossy fibers than was previously thought. Credit Lee lab Usage Restrictions none 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.