part of larval brain larval serotonergic SP2 neuron larval serotonergic SP2 neuron 2 2014-11-13T10:07:48Z fly_anatomy.ontology Larval serotonergic SP2 neuron that mainly innervates the basolateral protocerebrum, with one of its processes projecting to the region around the mushroom body peduncle and another process sparsely innervating the lateral region (Huser et al., 2012). larval serotonergic SP2-2 neuron FBbt:00110959 VFB:FBbt_00110959 serotonergic SP2 neuron 2