A cell in a worm (IMAGE) Picower Institute at MIT Caption In a C. elegans worm the neuron HSN has a critical role in directing several coordinated behaviors. This image labels HSN in green, showing its extension all the way to the worm's head (labeled in red). Credit Flavell Lab/MIT Picower Institute Usage Restrictions With Credit License Original 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.