Organization of the stomatogastric ganglion of the spiny lobster

SummaryThree direct synaptic connections occur between neurons in the gastric and pyloric systems of the stomatogastric ganglion ofPanulirus interruptus. Two synapses are inhibitory, and one is electrical. This electrical synapse is both excitatory and inhibitory at different times. These synapses, and others within each system, let the two systems interact under some conditions. The synapses also form multisynaptic pathways which modulate the firing of many neurons in both systems. The consequences of these multisynaptic pathways are described and discussed.

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