larval serotonergic T1 neuron serotonergic T1 neuron 1 larval serotonergic T1 neuron 1 2014-11-13T14:33:02Z larval serotonergic T1-1 neuron Larval serotonergic T1 neuron whose cell body is located close to the ventral midline in the first thoracic segment. It branches next to the cell body, with the contralateral branch densely innervating the ventral and lateral regions of the prothoracic neuromere. The ipsilateral branch splits again, with one branch extending to the dorsal border and the other to the midline, sparsely innervating the contralateral side. FBbt:00110973 fly_anatomy.ontology VFB:FBbt_00110973