The authors, whilst accepting the neuron theory, present data indicating the possibility that neuronal syncytia exist when myelin-coated ring-like structures form in the dendritic field, in nerve arcades close to neuron bodies, and on formation of thick, straight anastomoses between neuron bodies. Studies using computerized time-lapse videomicroscopy in cultures of isolated neurons demonstrated the mechanism by which these structures form. This report provides the first evidence of the time parameters of the fusion of the processes of a single live neuron; the fusion of fragments of an isolated glial-free fiber was demonstrated.
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