Formation of Vortices (image) Saarland University Caption Plasma influences the formation of vortices in blood. In one experiment, the researchers let blood plasma flow through a microfluidic channel such as is found in a constricted blood vessel. They observed vortices at the end of the channel, but also -- as shown in these images -- at the entrance to the channel. These vortices are created because of the viscoelastic properties of blood plasma. Credit Mathias Brust, Phys. Rev. Lett. 110, 2013, 078305. Copyright (2013) by the American Physical Society Usage Restrictions None 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.