Supraclavicular part of brachial plexus

The branches of distribution of the brachial plexus may be arranged into two groups, viz., those given off above and those below the clavicle:

Supraclavicular Branches:

• Dorsal Scapular : 5C
• Suprascapular: 5, 6 C
• Nerve to Subclavius: 5, 6 C
• Long thoracic: 5,6,7 C
• To Longus colli and Scaleni: 5,6,7,8 C

Infraclavicular Branches:

• Lateral cord
  • Musculocutaneous: 5, 6, 7 C
  • Lateral anterior thoracic: 5, 6, 7 C
  • Lateral head of median: 6, 7 C
   
• Medial cord
  • Medial anterior thoracic: 8 C, 1 T
  • Medial antibrachial cutaneous: 8 C, 1 T
  • Medial brachial cutaneous: 8 C, 1 T
  • Ulnar: 8 C, 1 T
  • Medial head of median: 8 C, 1 T
   
• Posterior cord:
  • Upper subscapular: 5, 6 C
  • Lower subscapular: 5, 6 C
  • Thoracodorsal: 5, 6, 7 C
  • Axillary: 5, 6 C
  • Radial: 6, 7, 8 C, 1 T