Hearing Hair Cells (IMAGE) University of Maryland School of Medicine Caption A surface view of the organ of hearing (cochlea) from a mouse, using confocal microscopy. The sensory cells are named hair cells because of their apical projections (stereocilia) which move from stimulation by sound. Credit University of Maryland School of Medicine 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.