Assertion: bronchiole | /r/HasSubevent | alveolar duct
Facets:
value: directly
type: MANNER
Source sentences:
text: The respiratory zone begins where the terminal bronchioles join a respiratory bronchiole, the smallest type of bronchiole (Figure), which then leads to an alveolar duct, opening into a cluster of alveoli.
text: As such, bronchioles are one of the smallest airways in the respiratory tract, and lead directly to the alveolar ducts which house the alveoli responsible for exchanging gases with the blood.