An<unk>  (also known as an oral airway,<unk>  or Guedel pattern airway) is a medical device called an airway adjunct used in airway management to maintain or open a patient's airway. It does this by preventing the tongue from covering the epiglottis, which could prevent the person from breathing. When a person becomes unconscious, the muscles in their jaw relax and allow the tongue to obstruct the airway.
Oropharyngeal airway
Nasopharyngeal airway
Nasal cavity
Endobronchial valve
Craniopharyngeal canal
Hemotympanum
Electrolarynx
Neck ring