protocerebral neuroblast type I neuroblast neuroblast VPNv2 2013-05-22T11:24:12Z FBbt:00110404 VFB:FBbt_00110404 fly_anatomy.ontology Neuroblast that generates a clone of adult neurons that collectively innervate the lobula and the posterior ventrolateral protocerebrum (Ito et al., 2013). It has approximately 59 progeny at the adult stage (Ito et al., 2013). This lineage originates in the optic lobe and its neuroblast of origin has not been demonstrated in the larva (Schlegel et al., 2024 - FlyBase:FBrf0260535). neuroblast VPNv2