1·Behind this bone, the radius - a lower arm bone in line with the carpometacarpus - was unusually thick compared to the relatively slender companion bone, the ulna.
在这块骨骼后面，桡骨——下臂与手carpometacarpus的联接部分——要比尺骨厚的多(与桡骨类似但相对较细的部分)。
2·Its linguistic origins, and their connotations of joints and extensions, also gives us elbow and ulna.
它的词源，以及它关于关节和延展部分的内涵，也让我们想起肘部和尺骨。
3·The articulation of the radius and ulna in the arm is a pivot joint.
手臂桡骨和尺骨的连接关节是一个枢轴关节。
4·A few operations is oar ulna fracture? ? ? ?
桡尺骨骨折是几个手术？？？？
5·A small boneat the junction of the ulna and the carpus.
豌豆骨连接尺骨和腕骨的小骨头。