Better Blood Monitors (image) The Optical Society Caption A) Angiogram of blood vessels in the nude mouse cerebral cortex are shown. B-C) Venous saturation can be quantified at baseline under normal oxygenation conditions (normoxia), reduced oxygenation conditions (hypoxia), and finally, after return to normoxia. Credit Shau Poh Chong, Conrad Merkle, Vivek Srinivasan Usage Restrictions Include caption & credit 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.