In vivo Images (IMAGE) Karlsruher Institut für Technologie (KIT) Caption (A,B) in vivo image of growing artery (yellow arrowhead) in control scenario (A) and upon growth factor stimulation (B). (C,D) Confocal image of arterial blood flow (red) and arterial endothelial actin cytoskeleton (green) in control scenario (C) and upon growth factor stimulation (D). Credit ZOO, KIT 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.