Neuronal Activity and Axonal Flow

It has been shown that several transport systems exist in the neuron and its processes. In the axon, material is transported at slow and fast rates, which differ by one or even two orders of magnitude. Material is transported in the dendrites at rates approximating axonal fast flow. A selective gate mechanism is postulated for both axonal and dendritic transport, as some organelles are observed either predominantely in the axons and rarely in the dendrites, or rarely in the axons and predominantely in the dendrites.