[TA] one of the suprahyoid muscles of the neck; origin, mental spine of mandible; insertion, body of hyoid bone; action, draws hyoid forward, or depresses jaw when hyoid is fixed; nerve supply, fibers from ventral primary rami of first and second cervical spinal nerves conveyed by the hypoglossal nerve. SYN: musculus geniohyoideus [TA], geniohyoid, geniohyoideus.
