The mylohyoid is a thin, flat muscle located in the floor of the mouth. It forms a supportive structure that helps elevate the tongue and the floor of the mouth during swallowing and speaking. The muscle stretches from the mandible (lower jaw) to the hyoid bone, which is situated in the neck. This muscle is important for various functions, including aiding in the movement of food during chewing and assisting in the process of swallowing. The mylohyoid is innervated by the mylohyoid nerve, a branch of the trigeminal nerve, which plays a crucial role in facial sensation and motor functions.