part of procephalic neuroblast tritocerebral neuroblast fly_anatomy.ontology VFB:FBbt_00001363 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 tritocerebrum. Most, if not all, of these have serial homology to neuroblasts found in the thoracic neuromeres (Urbach et al., 2016). There are 13 of these, of which four produce a secondary lineage (Kuert et al., 2012; Urbach et al., 2016). FBbt:00001363 T tritocerebrum neuroblast