Receives air from the nasal cavity and air, food and water from the mouth. Is lined with a mucous membrane. Auditory tubes open here.
Posterior surface contains the pharyngeal tonsil that protects the body from infection.
Oropharynx Extends from the uvula to the epiglottis. Oral cavity opens into the oropharynx through the fauces . Food, drink, and air pass through the oropharynx. Is lined with stratified squamous epithelium that provides protection against abrasion. Laryngopharynx Extends from the tip of the epiglottis to the openings of the larynx and esophagus.