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Pterygomandibular raphe

Recommended video: Muscles of the pharynx [13:28]
Overview of the muscles of the pharynx and related structures.

The pterygomandibular raphe, also called the pterygomandibular ligament, is a tendinous band of the buccopharyngeal fascia. It extends from the hamulus of the medial pterygoid plate of the sphenoid to the mylohyoid line of the mandible.

The buccinator muscle attaches to the anterior margin of the pterygomandibular raphe, while the superior pharyngeal constrictor muscle attaches to its posterior margin.

Its medial surface is covered by the oral mucosa. Adipose tissue separates its lateral surface from the ramus of the mandible.

A fold of mucosal tissue known as the pterygomandibular fold overlies the pterygomandibular raphe and is an important anatomical landmark for the administration of inferior alveolar nerve blocks.

Terminology English: Pterygomandibular raphe
Synonym: Pterygomandibular ligament

: Raphe pterygomandibularis
Synonym: Ligamentum pterygomandibulare
Definition The pterygomandibular raphe is a tendinous band extending from the medial pterygoid plate to the mandible.

Learn more about the muscles of the pharynx in the following study unit:

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