The most accepted current theory states that individuals with emphysema have a loss of elastic fibers due to proteases breaking them down. This causes the smaller airways, like small bronchioles and alveolar ducts, to collapse. This collapse leads to __________.

A. loss of air from the alveoli
B. trapping of air in the tertiary bronchi
C. trapping of air in the main stem bronchi
D. trapping of air the alveoli


Answer: D. trapping of air the alveoli

Anatomy & Physiology

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