Assertion: esophagus's sphincter | /r/CapableOf | open to allow liquid
Facets:
value: during swallowing
type: TEMPORAL
value: to allow air
type: PURPOSE
Source sentences:
text: Working in synchronization with the tongue and muscles in the back of the pharynx, this sphincter opens to allow food, air and liquid into the esophagus, and then closes to prevent unwanted aspiration.
text: During swallowing, the upper esophageal sphincter opens to allow food and liquids to pass into the esophagus.﻿﻿