Assertion: esophagus | /r/HasProperty | empty
Facets:
value: except during the act of swallowing
type: TEMPORAL
value: normally
type: DEGREE
Source sentences:
text: When the esophagus is empty, its mucosa and submucosa are thrown into longitudinal folds, but during passage of a bolus, these folds flatten out (Figure 3).
text: Except during the act of swallowing, the esophagus is normally empty, and its lumen, or channel, is essentially closed by the longitudinal folds of the mucosal and submucosal layers.