The mylohyoid is a suprahyoid muscle of the neck. It is a triangular shaped muscle which forms the floor of the oral cavity and supports the floor of the mouth.
- Attachments: Originates from the mylohyoid line of the mandible, and attaches onto the hyoid bone.
- Actions: Elevates the hyoid bone and the floor of the mouth.
- Innervation: Inferior alveolar nerve, a branch of the mandibular nerve (which is derived from the trigeminal nerve).
- Blood Supply: Vertebral artery and the deep descending branch of the occipital artery.