Figure 7From: Distribution of airway narrowing responses across generations and at branching points, assessed in vitro by anatomical optical coherence tomographyComparison of airway narrowing in parent and daughter bronchi. Airway narrowing was measured in response to luminally applied carbachol in the mouth of a daughter side branch and in the parent bronchus at the branching site. A total of 21 parent-daughter branching sites were measured from four different airway preparations. There was no difference in airway narrowing between parent and daughter bronchi. (Paired t-test).Back to article page