Vocal cord bioreactor during testing (IMAGE) McGill University Caption The flow, mimicking the blood in the human body, passes through 6 centimeter-long hydrogels in the vocal cord bioreactor during testing. Credit Guangyu Bao Usage Restrictions Credit License Original 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.