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Stylohyoid Muscle
Muscular System

Stylohyoid Muscle

Musculus stylohyoideus

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Quick Facts

Origin: Styloid process of temporal bone.

Insertion: Body of hyoid bone.

Action: Elevates hyoid bone.

Innervation: Stylohyoid branch of facial nerve (CN VII).

Arterial Supply: Facial, posterior auricular, and occipital arteries.

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Origin

The stylohyoid muscle is a thin muscle arising from the posterior aspect of the base of the styloid process of the temporal bone.

Insertion

The stylohyoid muscle extends in an anteroinferior direction and attaches to the body of the hyoid bone.

Key Features & Anatomical Relations

The stylohyoid muscle is pierced by the digastric muscle near its inferior end. Variation is common and the stylohyoid muscle may be absent or additional slips may be present (Tubbs, Shoja and Loukas, 2016).

Actions

The stylohyoid muscle elevates the hyoid bone and pulls it posteriorly (Standring, 2016).

References

Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Tubbs, R. S., Shoja, M. M. and Loukas, M. (2016) Bergman's Comprehensive Encyclopedia of Human Anatomic Variation. Wiley.

Learn more about this topic from other Elsevier products

Stylohyoid Muscle

ScienceDirect image

The stylohyoid muscle is a slender muscle found along the upper border of the posterior belly of digastric.

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Complete Anatomy