part of innervates superior medial protocerebrum fascicle pyriform fascicle 2010-11-30T12:57:17Z PYF fly_anatomy.ontology VFB:FBbt_00100338 FBbt:00100338 Tract emerging from the superior-most lateral area of the superior medial protocerebrum and ending in the region between the superior lateral protocerebrum and lateral horn of the adult brain (Ito et al., 2014). It demarcates the boundary between these two regions (Ito et al., 2014). adult cerebral ganglion