True about vagal nuclei are all except?

Ans. is'd'i.e., Spinal trigeminal nucleus is not a vagal nucleus(Ref: 'Functional and chemical anatomy of the afferent vagal system". Autonomic Neuroscience. 85 (I-3): I-17.)The vagus nerve includes axons which emerge from or converge onto four nuclei of the medulla.They are present deep in the medulla in the floor of the 4th ventricle.