after injections of the fluorescent retrograde tracers bisbenzimide , 'true blue ' , 'granular blue ' and evans blue in the medulla oblongata ( centered in the solitary nucleus ) or in upper thoracic spinal segments , a continuous group of labeled neurons was found scattered throughout the retrochiasmatic area and ventral parts of the ventromedial nucleus of the hypothalamus , predominantly on the side ipsilateral to the injection sites .
C0025148
medulla oblongata
C0175518
solitary nucleus