How should the airway be opened differently among adults, children, and infants?

Infants' airways should be opened to a neutral position to ensure that their delicate anatomy and physiological differences are properly taken into account. In this position, the infant's chin is slightly elevated, and the head is not tilted too far back, as this can obstruct their airway due to their proportionally larger heads and softer trachea.

For children and adults, while a past neutral position may be used in certain circumstances, infants specifically benefit from a neutral position to avoid complications during resuscitation. Understanding this difference is crucial for effective airway management in infants, as their needs differ significantly from those of older children and adults.