Stylohyoid

Anatomy

Origin:
Base of styloid process of the temporal bone.

Insertion:
Base of greater cornu of hyoid bone.

Key Relations:
-Is one of the suprahyoid muscles lying in the anterior triangle of the neck.
-Perforated near it’s insertion by the intermediate tendon of the digastric muscle.
-Anteromedial to stylohyoid is another suprahyoid muscle geniohyoid.

Functions

Elevates hyoid bone by pulling it in a posterosuperior direction during swallowing (deglutition).

Supply

Nerve Supply:
Facial nerve (CN 7).

Blood Supply:
–Facial artery
–Posterior auricular artery
–Occipital artery.

Clinical

Stylohyoid can frequently become calcified after middle age.

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