Question

the collapse of lung tissue, preventing exchange of oxygen and carbon dioxide: a emphysema b coryza c atelectasis d epistaxis

Explanation:

• Option A: Emphysema is a condition where the air sacs in the lungs are damaged, leading to difficulty in breathing, but it is not the collapse of lung tissue.
• Option B: Coryza is a common cold or inflammation of the nasal mucosa, not related to lung tissue collapse.
• Option C: Atelectasis is defined as the collapse of lung tissue, which prevents the normal exchange of oxygen and carbon dioxide.
• Option D: Epistaxis is a nosebleed, unrelated to lung tissue.

Answer:

C. atelectasis