Which component of the King airway inflates to isolate the nasopharynx and oropharynx?

The proximal cuff of the King airway is specifically designed to inflate and create a barrier that isolates the nasopharynx and oropharynx. This function is crucial for effective ventilation and to prevent aspiration, particularly in complex airway management scenarios. When the proximal cuff is inflated, it helps ensure that air is directed into the trachea rather than allowing it to escape into the upper airway, thereby facilitating proper oxygenation and ventilation.

The design of the King airway, which includes a series of inflatable cuffs, is meant to adapt to various anatomical variations in patients. The proximal cuff's role is vital in maintaining a secure seal at the upper airway while also allowing for simultaneous ventilation through a separate pathway, which can enhance efficiency and safety during emergency interventions. Understanding this component is essential for effective airway management in patients requiring advanced life support techniques.