has characteristic fasciculates with receives synaptic input in region sends synaptic output to region adult ellipsoid body extrinsic ring neuron adult lateral ellipsoid fascicle adult lateral accessory lobe bulb ellipsoid body outer posterior domain ellipsoid body outer central domain primary interneuron dopaminergic PPM3 neuron EB neuron of the dopaminergic PPM3 cluster 2013-04-05T04:03:58Z FlyBrain_NDB:10265 ExR2 ExR2 was not fully reconstructed by Hanesch et al. (1989), so although it is thought that they are represented by this class, it is possible that the Hanesch et al. (1989) ExR2 neurons are the Omoto et al. (2018) ExR4 neurons (Omoto et al., 2018). PPM3-EB ExR2 FBbt:00110327 extrinsic ring neuron ExR2 fly_anatomy.ontology Extrinsic ring neuron that is part of the dopaminergic PPM3 cluster and innervates the bulb and the lateral surface of the lateral accessory lobe, bilaterally (Omoto et al., 2018). It projects along the lateral ellipsoid fascicle, entering the ellipsoid body at a dorsolateral position (Omoto et al., 2018). It has mainly postsynaptic terminals in the lateral accessory lobe and mixed terminals in the outer central (sparse) and outer posterior (concentrated) domains of the ellipsoid body (Omoto et al., 2018; Hulse et al., 2021). Its terminals in the bulb are mostly presynaptic (Hulse et al., 2021). There are two of these cells per hemisphere and they develop from neuroblast DM6 (Kandimalla et al., 2023). VFB:FBbt_00110327 bilateral