Assertion: lung's function | /r/CapableOf | ensure unobstructed flow of air
Facets:
value: from the alveoli
type: TRANSITIVE-OBJECT
Source sentences:
text: While the process of respiration appears outwardly simple, the integrated function of many nerves, muscles, cartilages, and other anatomic structures is essential to ensure the unobstructed flow of air to and from the alveoli.