part of overlaps innervates adult adult lateral horn ventrolateral protocerebrum adult superior arch commissure SAC FBbt:00007075 VFB:FBbt_00007075 s ar c fly_anatomy.ontology Commissure located above the fan-shaped body (FB), connecting the superior medial protocerebrum (SMP), superior clamp and inferior clamp (Ito et al., 2014). It demarcates the boundaries of FB (superior region) and SMP (inferior region) (Ito et al., 2014). DPC1 superior arch commissure adult cerebral ganglion