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Stylohyoid
The stylohyoid (Latin: musculus stylohyoideus) is a thin neck muscle stretching between the base of the skull and the hyoid bone. This muscle is located above the hyoid bone. Therefore, it is classified as the suprahyoid muscle of the neck. It also belongs to the anterior neck muscles.
| Stylohyoid | |
| Origin | Styloid process of temporal bone |
| Insertion | Between greater horn and body of hyoid bone |
| Action | Elevates and retracts hyoid bone |
| Innervation | Stylohyoid branch of facial nerve (CN VII) |
| Blood supply | Branches of facial, occipital and posterior auricular arteries |
Origin
The origin site of the stylohyoid muscle is the styloid process of the temporal bone.
Insertion
The stylohyoid inserts on the junction between the greater horn and body of the hyoid bone.
Action
The stylohyoid muscle elevates and retracts the hyoid bone.
Innervation
The innervation of the stylohyoid is provided by the stylohyoid branch of the facial nerve (CN VII).
Blood supply
The stylohyoid muscle receives arterial blood supply from the branches of the facial, occipital and posterior auricular arteries. All mentioned arteries are branches of the external carotid artery.
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