Human Epithelial Sodium Channel (IMAGE) Oregon Health & Science University Caption Using a cryo-electron microscope, researchers at OHSU in Portland, Oregon, generated a three-dimensional model of the human epithelial sodium channel. The channel is critical in controlling blood pressure, among other functions in the body. Credit OHSU Usage Restrictions OHSU offers select multimedia assets for use by news outlets. (Commercial use is prohibited without prior written consent.) When using this material, please: Credit image with 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.