Intestinal Villi (IMAGE) Duke University Caption A confocal microscopy image of small villi in the small intestine shows cell nuclei in blue and absorbed dietary fat in red. Credit John Rawls Lab, Duke Microbiome Center 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.