69.維持肱骨頭(humeral head)於盂肱關節(glenohumeral joint)中避免半脫位(subluxation), 下列那一肌肉最不具關鍵角色?
(A)棘上肌(supraspinatus)
(B)棘下肌(infraspinatus)
(C)小圓肌(teres minor)
(D)大圓肌(teres major)

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統計: A(32), B(17), C(27), D(677), E(0) #649584

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#4661418
肩關節穩定者為旋轉肌袖(棘上肌、棘下肌、...
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