目的：研究肱二头肌和三角肌肌支在臂丛中的定位。

Objective: to determine the location of the nerve branch to biceps brachii and deltoid in branchial plexus.

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结论：肱三头肌外侧头肌支有足够长度和横径，在肌门处可无张力移位至肌皮神经肱二头肌支及部分腋神经肌支。

Conclusions: Radial nerve branches of LHT have both enough length and diameter to anastomose nerve branches of musculocutaneous nerve and partial axillaris nerve;

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结论：肱三头肌外侧头肌支有足够长度和横径，在肌门处可无张力移位至肌皮神经肱二头肌支及部分腋神经肌支。

Conclusions: Radial nerve branches of LHT have both enough length and diameter to anastomose nerve branches of musculocutaneous nerve and partial axillaris nerve;

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