The mylohyoid muscle is a hyoid muscle included in the superficial muscles of the mandibular space, but due to its function, it may be seen as a lingual muscle. It forms a sling between the inner surface of the body of the mandible. Its fibers originate form the mylohoid line on the medial surface of the mandibular body and unite with those of the opposite side in the mindline of the mandibular space forming a median fibrous raphe.
Origin: mylohyoid line of mandible
Insertion: median raphe and basihyoid bone
Action: raise floor of the oral cavity
Nerve: mandibular nerve (branch of trigeminal nerve)