Definition: 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.
Synonym(s): musculus geniohyoideusTA, geniohyoid, geniohyoideus
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