arm bone
英汉例句
- The scapula is a triangular bone.
肩胛骨是一个三角形骨。 - The angulation of the pelvis and femur corresponds to that of the shoulder and upper arm.
骨盆与大腿骨的角度同肩胛骨与上臂骨的角度协调。 - The humerus is the long bone of the arm.
肱骨是上臂的长骨。 - The antigravity shoulder muscles prepare to bring the arm to shelf level,and the hand is prepositioned and oriented to prepare forgrasp-ing.
当伸手动作展开时,前肋骨侧边的肌肉及上下颈部斜方肌会同时收缩使肩胛拉开向上,而旋转环膜会让肱骨呈外旋的姿势,并使得肱骨头置入关节窝。