It runs from the mandible to the hyoid bone, forming the floor of the oral cavity of the mouth.

Together, the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth.

The posterior fibers pass inferomedially and insert at anterior surface of the hyoid bone.

[4] The submandibular gland wraps around the edges of the mylohyoid, and is divided into superficial and deep lobes above and below the muscle.

[1] The mylohyoid muscles are derived from embryonic mesoderm, specifically the first pharyngeal arch.

[6] Accessory mylohyoid muscles have been seen in some people, which have the same attachments, nerve supply, and function.

[7] An area of herniation of the sublingual gland, blood vessels, or fat, may be present, with studies reporting this in 10-50% of people.