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A member asked:
Why do newborns flare there nostrils?
9 doctors weighed in across 2 answers
Opens airway...: ...Wider so that breathing is easier. This can sometimes be a sign of respiratory distress.
Answered 10/11/2013
4.9k views
Resistance: To the flow of air through a tube is inversely proportional to the 4th power of its radius. As such, changes in caliber can have a dramatic impact on air movement in either direction. This is why kids with asthma, whose bronchioles have thickened walls from inflammation, have so much difficulty moving air and why they flare their nostrils in an effort to compensate.
Answered 9/19/2013
4.9k views
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