What results in partial or total obstruction of the airway in an unconscious patient?
A) Closed mouth coexistent with nasal congestion.
B) Epiglottis relaxes and occludes the laryngeal opening.
C) Relaxation of tongue and hypopharyngeal muscles.
D) The uvula occluding the airway.

Question

Quizplus · Accepted Answer

During unconsciousness, the muscles of the tongue and hypopharynx can relax and allow the tongue and other soft tissues to collapse and occlude the opening of the hypopharynx. This condition can result in partial to complete blockage of the upper airway and limit air movement to and from the respiratory tract. This is a primary cause of obstructive sleep apnea.

What Results in Partial or Total Obstruction of the Airway