Assertion: esophagus's sphincter | /r/HasProperty | innervated by somatic neurons
Facets:
value: via the vagus nerve
type: MANNER
value: from the nucleus ambiguus
type: LOCATION
Source sentences:
text: The striated musculature and the upper esophageal sphincter are innervated by somatic neurons via the vagus nerve (CN X) from the nucleus ambiguus, while the visceral motor neurons from the dorsal motor nucleus act through connection with the esophageal myenteric nervous system and innervate the smooth musculature and the lower esophageal sphincter.