Assertion: asthma's airway | /r/CapableOf | produce mucus
Facets:
Source sentences:
text: Increased immune system sensitivity causes the lungs and airways to swell and produce mucus when exposed to certain triggers.
text: When the person breathes in a trigger, the airways make more mucus that cause the airways to become more narrow.
text: Inflamed and constricted airways produce more mucus, and make breathing more difficult.
text: It makes it hard to breathe because the airways become swollen, produce too much mucus and the muscles around the airways tighten.
text: Chronic bronchitis, which produces a persistent cough not related to a cold or other medical condition, causes inflammation of the airways, which produces mucus and causes muscle spasms.