Assertion: esophagus's muscle | /r/AtLocation | involuntary control
Facets:
value: by one's nervous system
type: OTHER
Source sentences:
text: The cardiac muscle pumps blood through the body and is under involuntary control.
text: The esophagus is a somewhat unique organ in that the muscle in the upper part is under voluntary control, while the muscles of the lower end are under involuntary control.
text: Smooth muscle is under involuntary control by one's nervous system.