Human Mammary Epithelial Cells (IMAGE) Arizona State University Caption These surface shaded renderings illustrate four nuclear shape categories of human mammary epithelial cells (scale bar = 5 microns). Credit The Biodesign Institute at Arizona State University 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.