part of procephalic neuroblast protocerebral neuroblast VFB:FBbt_00001334 FBbt:00001334 fly_anatomy.ontology In the embryo, individual neuroblasts are named according to their position relative to major morphological features (cephalic furrow, invaginating foregut, dorsal and ventral midline, their relative position with respect to each other, their time of segregation and their expression of markers) (Urbach et al., 2003). A neuroblast located in the protocerebrum. None of these are serial homologues of neuroblasts found in the thoracic neuromeres (Urbach et al., 2016). protocerebrum neuroblast