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Pharyngeal Aponeurosis
Muscular System

Pharyngeal Aponeurosis

Aponeurosis pharyngea

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Structure/Morphology

The pharyngeal aponeurosis is a semicircular ring of dense connective tissue located posterior to the thyroid cartilage, between the mucosal and muscular layers of the pharynx (Netter, 2011).

The pharyngeal aponeurosis is not to be confused with the pharyngobasilar fascia, which is sometimes referred to as the same name.

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Anatomical Relations

The pharyngeal aponeurosis is located at the inferior margin of the inferior pharyngeal constrictor muscle and acts as the insertion for palatopharyngeus muscle (Okuda et al., 2008).

Function

The pharyngeal aponeurosis acts as an anchoring insertion for the palatopharyngeus muscle, allowing it to pull the pharynx superiorly during swallowing.

References

Netter, F. H. (2011) Atlas of Human Anatomy. Netter Basic Science Series: Saunders/Elsevier.

Okuda, S., Abe, S., Kim, H. J., Agematsu, H., Mitarashi, S., Tamatsu, Y. and Ide, Y. (2008) 'Morphologic characteristics of palatopharyngeal muscle', Dysphagia, 23(3), pp. 258-66.

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Pharyngobasilar Fascia

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The pharyngobasilar fascia, a tough aponeurosis, is the cranial extension of the superior constrictor muscle from the level of the soft palate to the base of the skull.

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