serotonergic T1 neuron serotonergic T1 neuron 2 2014-11-13T14:33:02Z Serotonergic T1 neuron located in the first thoracic ganglion of the larva, and ventromedial and posterior in the prothoracic neuromere of the adult (Valles and White, 1988). It extensively arborizes the ipsilateral neuromere. FBbt:00110972 VFB:FBbt_00110972 serotonergic T1-2 neuron fly_anatomy.ontology