Most of the fibers form the solitary tract and distribute bilaterally to the nuclei of solitary tract, the dorsalnuclei of the vagus nerve and the area postrema.
大量纤维形成孤束，主要分布于两侧孤束核、迷走神经背核及最后区。
2
His team found that exposing mice to the bacteria, and hence activating their immune system, activated clusters of neurons in their brainstem called the dorsal Raphe nuclei.