Summary: Star-shaped ‘glue’ cells make it their business to govern connections between neurons
![](https://www.braininitiative.org/wp-content/uploads/2020/12/eroglu_astrocyteHero.jpg)
Astrocytes are highly complex cells that tightly envelope synaptic structures in the brain. This picture shows 3D-printed forms of astrocytes (photo credit: Katie King).