Scanning Electron Micrograph of Brush Border (image) Vanderbilt University Medical Center Share Print E-Mail Caption Thousands of finger-like projections form a 'brush border' on the surfaces of cultured epithelial cells. In the intestines, the brush border is responsible for absorbing nutrients and defending against pathogens. Credit Courtesy of Matthew Tyska, Ph.D., and colleagues, Vanderbilt University Usage Restrictions Please credit: Matthew Tyska/Vanderbilt University 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.