Fascia and Space of the Pharynx

Fascia and Space of the Pharynx

A. Retropharyngeal space

• Is a potential space between the buccopharyngeal fascia and the prevertebral fascia, extending from the base of the skull to the superior mediastinum.
• Permits movement of the pharynx, larynx, trachea, and esophagus during swallowing.

B. Pharyngobasilar fascia

• Forms the submucosa of the pharynx and blends with the periosteum of the base of the skull.
• Lies internal to the muscular coat of the pharynx; these muscles are covered externally by the buccopharyngeal fascia.

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