Stylohyoid: The stylohyoid muscle is a thin muscular strip, that is positioned superiorly to the posterior belly of the digastric muscle. The stylohyoid muscle’s innervation by the facial nerve, and functions to draw the hyoid bone backwards and elevate the tongue.
Origin: The stylohyoid muscle originates from the base of the styloid process.
Insertion: Inserts into the lateral aspect of the hyoid bone.
Function: The stylohyoid muscle elevates and retracts hyoid bone. Initiates a swallowing action by pulling the hyoid bone in a posterior and superior direction.
Nerve Supply: The mandibular branch of the facial nerve (VII). This arises proximally to the parotid gland.
Neck Muscles: Origin, Insertion, Action & Nerve Supply