A Cell's Cytoskeleton (IMAGE) Technical University of Munich (TUM) Caption Microscopic image of a cell's cytoskeleton. Actin filaments are blue and microtubules are shown in red. The transporters can be seen as light green dots. Credit Dr. Zeynek Oekten / TUM 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.