Hair cells in ear (IMAGE) Linköping University Caption Illustration a shows how the relationship between the inner hair cells (pink), the outer hair cells (green) and the tectorial membrane (white) is usually depicted, with a gap between the membrane and the inner hair cells. Illustration b shows the discovery of the researchers with all of the hair cell stereocilia completely embedded in the tectorial membrane, and the calcium ducts (blue) that transport calcium ions to the hair cells. Credit Credit: Sanna Hedin CC-BY-4.0 Usage Restrictions Please use appropriate photo credit and captions. May only be used to report on the research associated with the image. 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.