Gap-like junctions between neurons and glia in the superior colliculus of mammals.

The neuron cell bodies and glia cells are separated by a narrow intercellular cleft of 200 A. We present here evidence that perikarya neuronal and perineuronal glia of the superior colliculus of the Oryctolagus Cuniculus communicate through gap-like junctions according to ultrastructural parameters. These junctions would mean some degree of electronic coupling between neuron cell bodies and perineuronal glia cells.