Two muscles, the infraspinatus and teres minor, connect the shoulder blade to the upper arm bone and roll the arms outward.

冈下肌和小圆肌这两块肌肉，将肩胛骨和上臂连接起来，使手臂外旋。

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The first find was a humerus, or upper arm bone, of a giant ground sloth.

第一个发现是巨型树懒的肱骨，或上臂骨。

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The team found that two of the wing bones showed evidence of combat, including a fractured hand bone and a centimeter-thick upper arm bone that was broken in half.

研究小组发现的两个翅骨带有争斗留下的痕迹。 其中一个是手骨，已经骨折，另一个是1厘米厚的上臂骨，已经断为两截。

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At the hospital, the 74-year-old was diagnosed with a proximal humerus fracture -- the humerus being the upper bone of the arm.

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He was diagnosed with a proximal humerus fracture -- the humerus being the upper bone of the arm -- and as a result underwent what the Supreme Court said was reverse shoulder replacement surgery Saturday morning.

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The reason for the dose of caution is due to the skeleton being incomplete, with just one upper arm bone, and six vertebrae being recovered.

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