Mylohyoid - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x 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: Mylohyoid branch of the inferior alveolar artery (itself a branch of the maxillary artery). By TeachMeSeries Ltd (2026) Fig 1Lateral view of the neck with three of the suprahyoid muscles highlighted (digastric, mylohyoid and stylohyoid) By TeachMeSeries Ltd (2026) Fig 2Anterior view of the neck with the suprahyoid muscles highlighted. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Pro Feature - Dissection Atlas You've Discovered a Pro Feature Access our Dissection Image Library Enhance your understanding with high-resolution dissection images showcasing real-life anatomy. Learn More Frequent questions What is the mylohyoid muscle? The mylohyoid muscle is a triangular suprahyoid muscle located in the neck, forming the floor of the oral cavity and supporting the mouth's base. Its structure is essential for various oral functions. Where does the mylohyoid muscle attach? The mylohyoid muscle originates from the mylohyoid line of the mandible and extends to attach to the hyoid bone. This positioning is crucial for its role in elevating the hyoid and the floor of the mouth. What are the actions of the mylohyoid muscle? The primary actions of the mylohyoid muscle include elevating the hyoid bone and the floor of the mouth. These functions are important for swallowing and speaking. Which nerve innervates the mylohyoid muscle? The mylohyoid muscle is innervated by the inferior alveolar nerve, a branch of the mandibular nerve, which originates from the trigeminal nerve. This innervation is vital for muscle contraction and function. What is the blood supply to the mylohyoid muscle? The blood supply to the mylohyoid muscle comes from the mylohyoid branch of the inferior alveolar artery, which is a branch of the maxillary artery. Adequate blood flow is essential for the muscle's health and functionality. Rate This Article