Human Inner Ear (2 of 2) (IMAGE) Harvard Medical School Caption Engravings showing the structure of the human inner ear by Gustaf Retzius, 1884 Credit Courtesy David Corey, Harvard Medical School 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.