Pterygoid hamulus
Pterygoid hamulus
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Pterygoid hamulus

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Pterygoid hamulus

The pterygoid hamulus is a hook-like process at the lower extremity of the medial pterygoid plate of the sphenoid bone of the skull. It is the superior origin of the pterygomandibular raphe, and the tensor veli palatini muscle courses around it before inserting into the palatine aponeurosis.

The pterygoid hamulus is part of the medial pterygoid plate of the sphenoid bone of the skull. Its tip is rounded off. It has an average length of 7.2 mm, an average depth of 1.4 mm, and an average width of 2.3 mm. The tendon of tensor veli palatini muscle glides around it.

The pterygoid hamulus is the superior origin of the pterygomandibular raphe.

Rarely, the pterygoid hamulus may be enlarged, which may cause mouth pain.

Public domain This article incorporates text in the public domain from page 151 of the 20th edition of Gray's Anatomy (1918)

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