Columns of Related Nerve Cells (IMAGE) The Francis Crick Institute Caption Nerve cells (yellow) from the same parent cell are organized in 3-D columns that extend through the layers of the gut wall. Credit Reena Lasrado Usage Restrictions Copyright: The Francis Crick Institute 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.