fasciculates with develops from expresses sends synaptic output throughout has sensory dendrite in Or2a adult antennal lobe commissure antennal lobe glomerulus DA4m antennal olfactory receptor neuron precursor Nab antennal olfactory receptor neuron of intermediate sensillum adult antennal lobe receptor neuron bilateral antennal lobe receptor neuron antennal intermediate sensillum ai3 adult olfactory receptor neuron Or2a odorant receptor neuron Or2a ORN ai3b VFB:FBbt_00067001 ORN (Or2a) ORN_DA4m adult ORN Or2a DoOR:Or2a ORN_DA4m ORN at3A FlyBrain_NDB:10397 fly_anatomy.ontology FBbt:00067001 Adult olfactory receptor neuron (ORN) that expresses Or2a (Benton et al., 2025). Its dendrite transduces signals from intermediate sensillum ai3 (Benton et al., 2025). Its axon innervates antennal lobe glomerulus DA4, bilaterally (Benton et al., 2025). It develops from an Nab precursor (Benton et al., 2025). There are around 20 of these cells on each side (Grabe et al., 2016; Benton et al., 2025). odorant receptor neuron DA4m Olfactory stimulus unknown (Benton et al., 2025). ORN at3X