Which of the following statements best describes how chronic obstructive pulmonary disease affects the mechanics of the chest wall?
A) The elastic recoil properties of the chest wall decrease.
B) The resting position of the chest wall remains unchanged.
C) The chest wall becomes concave.
D) There is an increased zone of apposition.

Question

Quizplus · Accepted Answer

Chronic obstructive pulmonary disease (COPD) leads to destruction of lung parenchyma, which in turn reduces the elastic recoil properties of the chest wall. This causes the chest wall to become less compliant, making it more difficult for the lungs to inflate and deflate properly. This eventually leads to an increase in work of breathing and shortness of breath. Choices B, C, and D are not accurate descriptions of how COPD affects the mechanics of the chest wall.

Which of the Following Statements Best Describes How Chronic Obstructive