Planarian Flatworm (image) School of Molecular and Cellular Biology, University of Illinois, Urbana Share Print E-Mail Caption The intestine of the planarian, Schmidtea mediterranea, is a model for stem cell-based organogenesis. In this image, intestinal cells (green) are labeled with a monoclonal antibody that recognizes intestinal phagocytes. Enteric muscles surrounding each intestinal branch are labeled with a second antibody (pseudocolored in blue). Credit David Forsthoefel, Newmark laboratory Usage Restrictions Image may be used only to accompany stories about the research described in this release. Please credit David Forsthoefel, Newmark laboratory. 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.