fasciculates with develops from expresses sends synaptic output throughout has sensory dendrite in Or92a antennal lobe glomerulus VA2 adult antennal lobe commissure antennal olfactory receptor neuron precursor Nab antennal olfactory receptor neuron of basiconic sensillum adult antennal lobe receptor neuron bilateral antennal lobe receptor neuron antennal basiconic sensillum ab1 adult olfactory receptor neuron Or92a fly_anatomy.ontology FlyBrain_NDB:10428 odorant receptor neuron VA2 ORN (Or92a) adult ORN Or92a VFB:FBbt_00067059 FBbt:00067059 Adult olfactory receptor neuron (ORN) that expresses Or92a (Benton et al., 2025). Its dendrite transduces signals from antennal basiconic sensillum ab1 and it responds to 2,3-butanedione (Benton et al., 2025). Its axon innervates antennal lobe glomerulus VA2, bilaterally (Benton et al., 2025). It develops from an Nab precursor (Benton et al., 2025). There are approximately 35 of these cells on each side (Benton et al., 2025). ORN ab1B DoOR:Or92a ORN_VA2 ORN_VA2 odorant receptor neuron Or92a