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The infraclavicular brachial plexus includes the cords and their terminal branches. They correlate closely with the axillary artery. The posterior cord is formed by the junction of the posterior divisions of the three trunks; terminal branches include the axillary and radial nerves. The lateral cord forms from the junction of the anterior divisions of the upper and middle trunks; terminal branches include the musculocutaneous nerve and the lateral contribution to the median nerve. The medial cord is the continuation of the anterior division of the lower trunk; terminal branches include the ulnar nerve and the medial contribution to the median nerve.

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Brachial Plexus, Infraclavicular Exposure

  • 章节

  • 发表日期：

    2025年

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  • Amgad S. Hanna,
  • Mark E. Ehlers

摘要

The infraclavicular brachial plexus includes the cords and their terminal branches. They correlate closely with the axillary artery. The posterior cord is formed by the junction of the posterior divisions of the three trunks; terminal branches include the axillary and radial nerves. The lateral cord forms from the junction of the anterior divisions of the upper and middle trunks; terminal branches include the musculocutaneous nerve and the lateral contribution to the median nerve. The medial cord is the continuation of the anterior division of the lower trunk; terminal branches include the ulnar nerve and the medial contribution to the median nerve.