BRS
The vagus nerve innervates what parts of the GI system?
Cervical part of esophagus receives parasympathetic supply from the recurrent laryngeal nerve, while the sympathetic supply comes from the cervical sympathetic trunk.
Thoracic part of esophagus is innervated by the autonomic esophageal plexus. The sympathetic source for this plexus is the sympathetic trunk, while the parasympathetic input comes from the vagus nerve (CN X).
Sympathetic supply of the abdominal part comes from the fifth to twelfth thoracic spinal nerves (T5-T12), while the parasympathetic source is the esophageal plexus.