part of has soma location fasciculates with develops from larval anterior commissure neuroblast NB2-2 thoracic neuroblast NB2-2 lineage NB2-2 primary interneuron larval thoracic NB2-2 primary interneuron VFB:FBbt_00001470 See Bossing et al. (1996) for a diagram. Larval primary interneuron that develops from NB2-2 of the thorax. There are about 10 of these cells and they form a bundle that projects through the anterior commissure (Bossing et al., 1996). Compared to the abdominal NB2-2 interneurons, this contralateral bundle is less prominent and it does not make an anterior turn after reaching the contralateral connective (Bossing et al., 1996). FBbt:00001470 2-2I of thorax fly_anatomy.ontology thoracic neuron nervous system of embryonic/larval thorax ventral ectoderm derivative larval interneuron primary interneuron larval thoracic neuromere cell body rind of larval thoracic neuromere