part of synaptic neuropil domain adult periesophageal neuropils saddle PENPvm PENPl ventromedial perioesophageal neuropils SAD lateral perioesophageal neuropils Synaptic neuropil domain covering the dorsal and posterior surface of the adult gnathal ganglia. It contains the antennal mechanosensory and motor center (AMMC). The saddle corresponds to the antennal mechanosensory and motor center (AMMC) of Chiang et al. (2011) and to the lateral and ventromedial periesophageal neuropils (Ito et al., 2014). fly_anatomy.ontology AMMC VFB:FBbt_00045048 FBbt:00045048 adult subesophageal zone