overlaps embryonic/larval aorta embryonic/larval corpus cardiacum innervating neuron serotonergic corpus cardiacum innervating neuron CC/A The origin of these fibers is most likely the ventricular ganglion (Siegmund and Korge, 2001). FBbt:00007466 VFB:FBbt_00007466 Larval serotonergic neuron that runs along the surface of the esophagus, fasciculates with the nervus corporis cardiaci and arborizes in the corpus cardiacum and along the aorta (Siegmund and Korge, 2001). fly_anatomy.ontology larval ring gland projection neuron larval serotonergic neuron