type I neuroblast neuroblast BLAv1 2011-07-11T03:23:05Z Neuroblast found in a relatively ventral location in the basolateral anterior (BLA) group, along the anterior edge of the optic lobe primordium, during the larval stage (Pereanu and Hartenstein, 2006; Hartenstein et al., 2015). Its primary lineage projects posteriorly, then medially, entering the ventrolateral protocerebrum (VLP) and some fibers continue medially to the great commissure (GC) (Hartenstein et al., 2015). It produces two secondary hemilineages, a posterior one that follows the tract of primary lineage through the VLP and GC and a medial one, that crosses the midline at the superior arch commissure (Wong et al., 2013). During metamorphosis, the hemilineage clusters move apart and the posterior hemilineage gains an additional, ventral, branch (Lovick et al., 2013). In the adult, each hemilineage cluster has approximately 60 cells (Yu et al., 2013; Ito et al., 2013). FBbt:00100612 VFB:FBbt_00100612 fly_anatomy.ontology neuroblast BLAv1 neuroblast VLPl_d1 neuroblast VLPl&d1 neuroblast BLA