The problem of neuronal syncytical connection in disease.

The membranes of neuron profiles adjacent to each other in the caudal mesenteric ganglion were examined electron microscopically during the first 3 days after crossing of the preganglionar or postganglionar branches. The contacting membranes were thinned and perforated, and neuron-to-neuron syncytial connections were forming. Multiple connections were formed between the nerve processes and terminals in the synapse. The pre- and even postsynapses were clear in pronounced perforations.