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。

youdao

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。

youdao

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）。

youdao

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

CNN: SHARE THIS

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.

CNN: SHARE THIS