Which of the following structures is NOT a part of the upper airway?
A. Bronchioles
B. Nasopharynx
C. Vallecular space
D. Arytenoid cartilage
Answer: A. Bronchioles
Health Professions
A. Bronchioles
B. Nasopharynx
C. Vallecular space
D. Arytenoid cartilage
Answer: A. Bronchioles