Spines (image) Howard Hughes Medical Institute Share Print E-Mail Caption A forest of dendritic spines protrude from the branches of neurons in the mouse cortex. Credit Gao et al./ Science 2019 Usage Restrictions Must use credit. Share Print E-Mail 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.