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Fig. 1. Schematic drawing of the heart and bases of the arteries (dorsal view), and the CNS (ventral view) corresponding to the body segments. AA, anterior artery; AG1-6, 1st to 6th abdominal ganglia; Cer. G, cerebral ganglion; CG, cardiac ganglion; CGCs, cardiac ganglion cells; LA1-15, 1st to 15th lateral artery; PA, posterior artery; SEG, subesophageal ganglion; TG7-9, 7th to 9th thoracic ganglia.