参考词典中musculospiral nerve的常规释义：
基本释义
英英解释
- 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
[同]
musculospiral nerve, nervus radialis, radial nerve
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