The Respiratory System

at a Glance

Jeremy Ward, Jane Ward and Richard Leach

Multiple Choice: Chapter 7 Lung mechanics: airway resistance

Question 7.1. Airway resistance in the human lung is

a greatest in the generation of distal bronchioles in healthy people because these airways have the smallest radii
b not increased during a forced expiration in a healthy subject
c inversely proportional to the radius in a given airway
d decreased when breathing through the mouth.