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Stylohyoid Ligament
Connective Tissue

Stylohyoid Ligament

Ligamentum stylohyoideum

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Structure

The stylohyoid ligament is a fibrous cord derived from the second pharyngeal arch during embryonic development. The stylohyoid ligament may be partially calcified.

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Anatomical Relations

The stylohyoid ligament extends from the styloid process of the temporal bone to the lesser cornu of the hyoid bone, thus, suspending the hyoid bone. It also forms the origin for the highest fibers of the middle pharyngeal constrictor and styloglossus muscles.

Function

The stylohyoid ligament, as mentioned above, suspends the hyoid bone and allows for the attachment of some fibers of the middle pharyngeal constrictor and styloglossus muscles.

List of Clinical Correlates

—Eagle syndrome

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Joint Ligament

ScienceDirect image

Laxity of the TMJ ligaments → hypotonus of the temporal and masseter muscles → dropping of the jaw.

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