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The Central Nervous System 中枢神经系统 脑Brain 食道下神经节Subesophageal ganglion Thoracic 胸神经节 ganglia 腹神经节 Abdominal ganglia A B C FIGURE 11.12.Consolidation of the ventral ganglia.A.Example in a coleopteran.B.Example in a hymenopteran.C.Example in a dipteran.From Gullan and Cranston (2000).Reprinted with permission
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