Location and Length (IMAGE) University of Pennsylvania School of Medicine Caption Olfactory sensory neurons with longer cilia and higher sensitivity are situated in highly stimulated regions of the nose. Credit Image created by Rosemary Challis, Kai Zhao, and Minghong Ma, Perelman School of Medicine, University of Pennsylvania; Current Biology 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.