In pediatric airways, the cricoid cartilage acts as a cuff because it is the narrowest part of the airway.

In pediatric airways, the cricoid cartilage acts as a cuff because it is the narrowest part of the airway.

• A. True
• B. False
• C. Only neonates
• D. Only during inspiration

Answer: (A)

In pediatric airways, the narrowest fixed point is the subglottic region at the level of the cricoid cartilage. Because the cricoid is a complete ring surrounding the airway, this area constrains the airway the most, effectively acting like a natural cuff. That’s why endotracheal tube sizing in children targets achieving a seal around this subglottic area, typically below the vocal cords. This narrowing is a consistent feature across most children, not limited to neonates, and it isn’t something that only occurs during inspiration. So the statement is true.

In pediatric airways, the narrowest fixed point is the subglottic region at the level of the cricoid cartilage. Because the cricoid is a complete ring surrounding the airway, this area constrains the airway the most, effectively acting like a natural cuff. That’s why endotracheal tube sizing in children targets achieving a seal around this subglottic area, typically below the vocal cords. This narrowing is a consistent feature across most children, not limited to neonates, and it isn’t something that only occurs during inspiration. So the statement is true.