geniohyoid muscle


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ge·ni·o·hy·oid mus·cle

(jē'nē-ō-hī'oyd mŭs'ĕl)
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 accompanying hypoglossal.
Synonym(s): musculus geniohyoideus [TA] .
References in periodicals archive ?
Considering the "onset" of of the geniohyoid muscle as reference (first moment of swallowing--0s), these researchers found that the intake of thickened liquids, the masseter, of the geniohyoid and anterior digastric belly, they were activated always simultaneously; while esternohyoideous muscle was activated later.
An external incision was made between the mentum and the hyoid bone, and a pocket deep to the geniohyoid muscle was entered, yielding 40 ml of foul-smelling liquefied blood clot.
Another important group is that of the depressor muscles which have the basic function of opening the mouth, and contains lateral pterygoid, digastric muscles, mylohyoid and geniohyoid muscles.