THE VISCERAL NERVOUS SYSTEM 内脏神经系统 Frontal ganglion额神经节 脑Brain Frontal connective额神经索 Recurrent nerve逆走神经 Corpora 心侧体 cardiaca Hypocerebral ganglion 脑下神经节 食道Esophagus Esophageal nerve 食道神经 中肠Midgut Esophageal ganglion食道神经节 FIGURE 11.13.The stomatogastric nervous system.From Hartenstein (1997).Reprinted with permission