Scaffold Pores (IMAGE) University of Washington Caption This is a magnified view of the scaffold shows the pores, each about a tenth of a millimeter wide, where stem cells can grow. Credit Miqin Zhang, University of Washington Usage Restrictions With credit to Miqin Zhang, University of Washington 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.