(Science: anatomy, muscle) origin, mental spine of mandible; insertion, body of hyoid bone; action, draws hyoid forward, or depresses jaw when hyoid is fixed; nerve supply, fibres from ventral primary rami of first and second cervical spinal nerves accompanying hypoglossal.

Synonym: musculus geniohyoideus, geniohyoid, geniohyoideus.

Origin: gr. The chin _ E. Hyoid.

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