Epithelial Lining (IMAGE) Norwich BioScience Institutes Caption This image shows the epithelial lining of the gut. Credit Institute of Food Research and Univerisity of Siena Usage Restrictions None 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.