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Mucosa of Oropharynx
Digestive System

Mucosa of Oropharynx

Tunica mucosa partis oralis pharyngis

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Structure/Morphology

The mucosa of the oropharynx coats the inner pharyngeal walls, from the inferior margin of the soft palate to the superior margin of the epiglottis of the larynx.

Anteriorly the junction between the oral cavity and the oropharynx is called the oropharyngeal isthmus. The lateral walls of this anterior portion of the oropharynx contain the palatoglossal and palatopharyngeal folds. The midline has an inferior projection of the soft palate, the uvula.

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Key Features/Anatomical Relations

The mucosa of the oropharynx is continuous superiorly with the mucosa of the nasopharynx and inferiorly with the mucosa of the laryngopharynx. Anteriorly, it blends with the mucosa of the oral cavity.

Function

The mucosa of the oropharynx acts as a barrier against the external environment, such as preventing injury and microbial invasion.

Learn more about this topic from other Elsevier products

Oropharynx

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The oropharynx is the gateway to the proximal gastrointestinal tract.

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