tritocerebral neuroblast neuroblast BAlp4 neuroblast ALlv1 Tritocerebral neuroblast (Kuert et al., 2014) that generates primary and secondary olfactory projection neurons that innervate part of the posterior antennal lobe, the adjacent gnathal ganglion and higher brain centers other than the mushroom body calyx and the lateral horn (Das et al., 2013). VFB:FBbt_00050038 fly_anatomy.ontology FBbt:00050038 neuroblast BAlp4 antennal lobe neuroblast type I neuroblast neuroblast BA