Gut Cross Section (image) University of North Carolina Health Care Share Print E-Mail Caption This is picture of a cross section of a mouse intestine. Each 'petal' on the fringe of the image is showing a villus -- a finger-like projection extending into the lumen of the small intestine. Credit Kathleen Caron Lab, UNC Usage Restrictions credit properly Share Print E-Mail 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.