Emphysema is defined as:
a. chronic productive cough.
b. conducting airway enlargement.
c. destruction of alveolar walls without fi-brosis.
d. hemoptysis associated with productive cough and alveolar-capillary membrane destruction.
ANS: C
Emphysema is defined in anatomical terms as a condition characterized by abnormal, permanent enlargement of the airspaces beyond the terminal bronchiole, accompanied by destruction of the walls of the airspaces without fibrosis.
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