Open The Airway With An Oripharengeal If A Patient Is Unconscious He Is No Longer Has Muscle Since The Tongue Is Also A Muscle

Since the tongue is also a muscle, there is a risk that the tongue will slip back and block the airway.

This tube prevents slipping back and keeps the airway clear.
Important: if the patient vomits, it can always get into the trachea. So always have an eye on a patient.