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The internal thoracic (mammary) nerve
  1. A. A. Pearson,
  2. R. W. Sauter
  1. Department of Anatomy, University of Oregon Medical School, Portland, Oregon, USA 97201


    The internal thoracic (mammary) nerve is formed by contributions from the subclavian plexus and the phrenic nerve. It descends along the internal thoracic artery to the level of the seventh costal cartilage where it is lost. Some of its branches communicate with the intercostal nerves and are thought to be distributed with these nerves. Others follow perforating and anterior mediastinal arteries.

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