develops from sends synaptic output to region receives synaptic input throughout antennal lobe glomerulus VA4 uniglomerular antennal lobe projection neuron calyx of adult mushroom body adult antennal lobe projection neuron VA4 lPN Adult uniglomerular antennal lobe projection neuron from the ALl1 dorsal hemilineage with dendrites that mainly innervate antennal lobe glomerulus VA4 (Bates et al., 2020). The axons of these neurons innervate a small area at the dorsoposterior edge of the lateral horn. There is around one of these per hemisphere, it fasciculates with the medial antennal lobe tract and it is cholinergic (Bates et al., 2020). fly_anatomy.ontology VFB:FBbt_00007446 VA4_lPN FBbt:00007446 VA4 lPN mALT (VA4) iACT (VA4) VA4_lPN adult uniglomerular antennal lobe projection neuron lPN Notch OFF hemilineage neuron adult olfactory projection neuron antennal lobe projection neuron to mushroom body adult antennal lobe projection neuron to lateral horn adult cholinergic neuron neuroblast BAlc medial antennal lobe tract projection neuron