]> T5 neuron Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989) as assessed by FlyBrain Neuron DB. The neurotransmitter was assessed with a split-GAL4 strategy using a Chat-DBD allele (FBal0198074) (Mauss et al., 2014) and single-cell transcript profiling (Shinomiya et al., 2014). Connectivity in the lobula was assessed by serial section electron microscopy of a single column (Shinomiya et al., 2014). T5 VFB:FBbt_00003736 T5 T neuron T5 fly_anatomy.ontology FBbt:00003736 T neuron with its cell body in the lobula plate cell body rind and a cell body fiber that projects through the lobula plate and via the second optic chiasma, with little or no arborization, to lobula layer 1 (Fischbach and Dittrich, 1989; Shinomiya et al., 2019). It forms a fine arborization in lobula layer 1, then its axon doubles back across the second optic chiasma to form bleb-type arborizations in a single layer of the lobula plate (Fischbach and Dittrich, 1989; Shinomiya et al., 2019). It is a cholinergic neuron (Mauss et al., 2014; Shinomiya et al., 2014). There are a large number of these cells, which are generated from neuroblasts that amplify by symmetric division (type III) before generating the T5 (and T4) neurons (Mora et al., 2018). https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bae0/7069908/ef7abe34662d/359_2019_1375_Fig2_HTML.jpg lobula plate layer has soma location immature T5 neuron develops from adult cholinergic neuron receives synaptic input in region sends synaptic output to region cell body rind of adult lobula plate T neuron lobula layer 1 secondary neuron