9 下巴往前突出需要運用那些肌肉?
(A) 頦舌骨肌(geniohyoid muscle)與顳肌(temporalis muscle)
(B)顳肌與二腹肌(digastric muscle)
(C)內翼肌(medial pterygoid muscle)與外翼肌(lateral pterygoid muscle)
(D)下頜舌骨肌(mylohyoid muscle)與頦舌肌(genioglossus muscle)

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統計: A(13), B(10), C(32), D(19), E(0) #566008