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Mucosa of Nasopharynx
Respiratory System

Mucosa of Nasopharynx

Tunica mucosa partis nasalis pharyngis

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The nasopharyngeal mucosa begins at the posterior aspect of the nasal cavity. It extends in a posteroinferior manner to the uvula of the soft palate where it is continuous with the mucosa of the oropharynx. Underlying the mucosa is the pharyngobasillar fascia and the superior pharyngeal constrictor muscle.

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Key Features & Anatomical Relations

The auditory tube (also known as the pharyngotympanic or the Eustachian tube) opens into the nasopharynx. The mucosal lining of the pharynx is continuous with the auditory tube and, thus, infections may spread from the oral or nasal cavities to the ear.

A mucosal fold forms around the opening of the auditory tube called the torus tubarius. It extends inferiorly as the salpingopharyngeal fold that covers the salpingopharyngeus muscle.

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The nasopharynx is defined as the airway posterior to the termination of the nasal septum and proximal to the termination of the soft palate.

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