Cranial nerve X; 10

Nervus vagus

The wandering nerve, Vagus, Tenth cranial nerve

Starting from the oblongated obituary behind/dorsally of the olive and below/caudal of the ninth cranial nerve. The vagus nerve extends from the base of the skull down through the throat, joins the esophagus, passes through the chest cavity, makes its way through the diaphragma along with the esophagus and splits up into its final branches (all parasympathetic) in the upper abdominal cavity.
The vagus is provided with two sensory ganglia, one just inside and one outside the exit hole in the base of the skull.

The nerve supplies the striated muscles of the pharynx (together with cranial nerve 9), soft palate/palate muscles (together with cranial nerve 5) and is responsible for the vocal cord muscles.

The vagus nerve is the large parasympathetic nerve - the preganglionic (visceral efferens) nerve fibers from the ambiguus nucleus and the dorsal vagus nucleus in the medulla - which during its wandering course affects the surrounding intestinal organs in the throat, chest cavity and abdominal cavity, and which conveys sensory impressions - visceral afferens - from there to the nucl. solitarius in the medulla . The visceral filaments are 4 - 5 times as many as the visceralefferent ones.