central protocerebral neuroblast ventral central protocerebral neuroblast fly_anatomy.ontology FBbt:00005877 A neuroblast located in the ventral region of the central protocerebrum. 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). VFB:FBbt_00005877