largest branch of the brachial plexus; extends down the humerus to the lateral epicondyle where it divides into one branch that goes to the skin on the back of the hand and another that goes to the underlying extensor muscles
双语例句
In all specimens, a branch of the radial nere supplied the inferolateral fibers of the deep head. 在所有标本中，桡神经的一个分支分布于深头的下方纤维。
