protocerebral neuroblast type I neuroblast neuroblast CP4 2011-07-11T03:22:00Z FBbt:00100611 neuroblast CP4 fly_anatomy.ontology VFB:FBbt_00100611 Neuroblast that produces a primary lineage, located dorsal to that of CP1 in the larva, that enters the neuropil lateral to the mushroom body calyx and joins the oblique posterior tract (Hartenstein et al., 2015). Its secondary lineage mainly innervates the superior intermediate and medial protocerebrum in the adult brain (Wong et al., 2013). neuroblast CLp2 neuroblast CP