part of synaptic neuropil subdomain posterior slope superior posterior slope Superior (dorsal) part of the posterior slope. It lies behind the great commissure, gorget and vest and below the inferior clamp and inferior bridge. It has no clear glial boundary with the surrounding neuropils. VMCpod SPS VFB:FBbt_00045040 spsl fly_anatomy.ontology FBbt:00045040 The SPS corresponds to part of the superior part of the psl of Otsuna and Ito (2006) and to the dorsal postcommissural ventromedial cerebrum (Ito et al., 2014). dorsal postcommissural VMC