What is geniohyoid and mylohyoid?

The geniohyoid and mylohyoid are muscles located in the neck that play important roles in swallowing and speech. The geniohyoid is a narrow muscle that runs from the mental spine of the mandible to the hyoid bone, helping to elevate the hyoid and pull it forward. The mylohyoid is a flat, triangular muscle forming the floor of the mouth, extending from the mandible to the hyoid bone, and it supports the tongue and assists in the movement of food during swallowing. Both muscles are innervated by branches of the trigeminal nerve (CN V).