<i>Heligmosomoides polygyrus</i> (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption Heligmosomoides polygyrus (a nematode) was used as a gastrointestinal parasitic model to understand the mechanism behind lymph node lymphangiogenesis. Credit Lalit Kumar Dubey/EPFL Usage Restrictions Media purposes only 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.