Final answer:
The application of cricoid pressure primarily aims to displace the esophagus superiorly to prevent aspiration, although if improperly applied, it could potentially occlude the trachea or hypopharynx.
Step-by-step explanation:
The application of cricoid pressure, often referred to as the Sellick maneuver, is used in medical procedures to reduce the risk of aspiration during induction of anesthesia or in resuscitative measures. Cricoid pressure is intended to occlude the esophagus by applying force to the cricoid cartilage, thereby preventing regurgitated stomach contents from entering the pharynx and trachea. This maneuver can yield several outcomes; however, the most common and desired effect is the superior displacement of the esophagus, rather than direct occlusion of the airway structures. This helps ensure a clearer path should intubation be necessary. When incorrectly applied, cricoid pressure could potentially lead to occlusion of the trachea or hypopharynx, but the aim is to avoid these scenarios to ensure the patient's airway remains unobstructed.