In pediatric patients, what is the narrowest portion of the airway?

• A. Epiglottis
• B. Cricoid Cartilage
• C. Vocal Cords
• D. Nasal Passages

Answer: (B)

In pediatric airways, the smallest cross-sectional area is at the cricoid cartilage, the circular ring just below the vocal cords. This subglottic region is the narrowest portion of the airway in young children, which is why airway management focuses on passing devices and sizing tubes through that area. The epiglottis can be large and floppy, and the vocal cords are above this narrowing, but the cricoid ring defines the true bottleneck for airflow in children. This distinction helps explain why pediatric endotracheal tube sizing relies on passing through the cricoid region and why resistance is higher with smaller-diameter passages.