arm bone的用法和樣例：
例句
- The scapula is a triangular bone.
肩胛骨是一個三角形骨。 - The angulation of the pelvis and femur corresponds to that of the shoulder and upper arm.
骨盆與大腿骨的角度同肩胛骨與上臂骨的角度協調。 - The humerus is the long bone of the arm.
肱骨是上臂的長骨。 - The antigravity shoulder muscles prepare to bring the arm to shelf level,and the hand is prepositioned and oriented to prepare forgrasp-ing.
當伸手動作展開時，前肋骨側邊的肌肉及上下頸部斜方肌會同時收縮使肩胛拉開向上，而旋轉環膜會讓肱骨呈外旋的姿勢，並使得肱骨頭置入關節窩。
