One idea for how the ulnar nerve got its silly name is the fact that the nerve also runs through the humerus bone in your upper arm.
尺骨神经怎么会得到这样的一个愚蠢的名字“笑骨”，事实上其道理就在于这条神经也通过您的上臂上的肱骨上运行。
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。
Primate arms have one long bone, the humerus, in the upper arm above the elbow, and two thinner bones, the radius and ulna, in the forearm.
灵长类的上臂有一根长骨（肱骨），前臂有两根细骨（尺骨和桡骨）。
The humerus is the long bone of the arm.
肱骨是上臂的长骨。
The humerus is the long bone of the arm.
肱骨是上臂的长骨。
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