stage 1 neuroblast neuroblast NB7-1 fly_anatomy.ontology neuroblast NB7-1 VFB:FBbt_00001380 Neuroblast that delaminates in the first wave and generates the largest primary lineage, producing more than 40 cells in each hemisegment (Schmid et al., 1999). Its embryonic progeny include the U neurons and a large number of local interneurons (Schmid et al., 1999). In the embryo, one of these cells can be found in each hemisegment from S1-A9 (Birkholz et al., 2013; Urbach et al., 2016). In the larva, it resumes proliferation in segments S3 to A1 (Lacin and Truman, 2016). The neurons that develop from this neuroblast after larval hatching form postembryonic lineage 3, located at the posterior border of the neuromere (Lacin and Truman, 2016). lineage NB7-1 neuroblast NB 3 neuroblast 3 FBbt:00001380 lineage 3 neuroblast Lacin and Truman (2016) do not show data for neuromeres anterior to S3 (labial). segmentally-repeated neuroblast