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Fig. 1. Schematic of the isolated stomatogastric nervous system, including the axon
projections of MCN1 and CPN2 to the STG. The two lines with arrowheads
projecting posteriorly from the STG neuropil represent the projection pattern
of most STG motor neurons. Ganglia: CoG, commissural ganglion; OG, oesophageal
ganglion; STG, stomatogastric ganglion; TG, thoracic ganglion. Nerves:
cocTG, circumoesophageal connective from the CoG to the
TG; cocB, circumoesophageal connective from the CoG to the
brain; dgn, dorsal gastric nerve; dpon, dorsal posterior
oesophageal nerve; ion, inferior oesophageal nerve; lgn,
lateral gastric nerve; lvn, lateral ventricular nerve; mvn,
medial ventricular nerve; pdn, pyloric dilator nerve; poc,
post-oesophageal commissure; son, superior oesophageal nerve.
Neurons: CPN2, commissural projection neuron 2; MCN1, modulatory commissural
neuron 1.