Diagram of Cx26 Molecule (IMAGE) University of Warwick Caption This is a diagram showing the Cx26 molecule reacting with carbon dioxide, to trigger breathing and blood-flow. Credit University of Warwick 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.