part of develops from larval ventral nerve cord adult central nervous system adult ventral nerve cord adult ventral nervous system The region of the adult central nervous system posterior to the brain, containing all of the thoracic and abdominal neuromeres (Court et al., 2020). It exists as a single consolidated ganglion located in the ventral part of the thorax (Court et al., 2020). It is connected to the brain by descending and ascending neurons that pass through the neck connective (Court et al., 2020). adult VNS thoracico-abdominal ganglia FBbt:00004052 thoracicoabdominal ganglion TAC thoracico-abdominal nervous system VFB:FBbt_00004052 TAG fly_anatomy.ontology adult VNC adult ThGng thoracico-abdominal ganglion thoracico-abdominal center ventral nerve cord ganglion ventral ectoderm derivative