part of has characteristic has soma location fasciculates with has synaptic IO in region supraesophageal ganglion neuron adult brain medulla lobula lobula plate first optic chiasma adult serotonergic neuron cell body rind of adult protocerebrum adult large bilateral optic lobe serotonergic interneuron 2024-05-28T09:43:09Z Adult serotonergic neuron with a large cell body near the midline in the posterior protocerebrum and bilateral extensions to the optic lobes (Nassel et al., 1988; Kolodziejczyk et al., 2011). In the optic lobes, it arborizes in the lobula, lobula plate and medulla synaptic neuropils (Kolodziejczyk et al., 2011). Its axon runs past the medulla and passes through the first optic chiasma to innervate a layer just distal to the lamina synaptic neuropil (Kolodziejczyk et al., 2011). There is one of these cells per hemisphere (Nassel et al., 1988; Kolodziejczyk et al., 2011). FBbt:00053238 LBO5HT LBO5HT fly_anatomy.ontology VFB:FBbt_00053238 Based on descriptions, this might be a subtype of serotonergic IP neuron. adult CNS neuron adult posterior brain cell body rind bilateral