Differentiating Olfactory Neurons (image) University of California - Berkeley Caption Elongated green cells are sensory neurons -- which sense smells and relay that information to the brain -- that originated from olfactory stem cells in the nose. Cells labeled in red are immature cells in the process of differentiating into neurons and other mature cell types. Credit Photomicrograph by Russell Fletcher, UC Berkeley Usage Restrictions None 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.