part of develops from rostral vesicle of iSNSP embryonic/larval stomatogastric nervous system paraesophageal ganglion esophageal ganglion EG Small ganglion of the embryonic/larval stomatogastric nervous system located on the right hand side of the larva, between the two brain hemispheres, behind the supraesophageal commissure. It is elongated, less compact than the hypoesophageal ganglion and occupies a more ventral position, closely attached to the esophageal wall. It contains 10-12 neurons. esophageal ganglion 1 FBbt:00002635 VFB:FBbt_00002635 paraoesophageal ganglion fly_anatomy.ontology ganglion hypocerebral/paraesophageal ganglion primordium anterior ectoderm derivative