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      Variations in the Innervation of the Long Head of the Triceps Brachii: A Cadaveric Investigation.

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          Abstract

          Some leading anatomy texts state that all three heads of the triceps brachii are innervated by the radial nerve. The posterior cord of the brachial plexus bifurcates to terminate as the radial and axillary nerves. Studies have noted the presence of axillary innervation to the long head of the triceps brachii muscle, patterns different from the classic exclusive radial nerve supply. An understanding of these variations may assist the clinician in the assessment of shoulder weakness and in preoperative and operative planning of radial and axillary neuropathies.

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          Author and article information

          Journal
          Clin. Orthop. Relat. Res.
          Clinical orthopaedics and related research
          Springer Science and Business Media LLC
          1528-1132
          0009-921X
          Jan 2017
          : 475
          : 1
          Affiliations
          [1 ] Department of Surgery, Hackensack UMC Palisades, 7600 North River Road, North Bergen, NJ, 07047, USA. erhardt.alexandra@gmail.com.
          [2 ] Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA.
          Article
          10.1007/s11999-016-5146-z
          10.1007/s11999-016-5146-z
          5174069
          27830483

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