Brachial plexus

The brachial plexus is a network (plexus) of nerves (formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1). This plexus extends from the spinal cord, through the cervico axillary canal in the neck, over the first rib, and into the armpit.
Function: Network (nerve plexus) of nerves that ...
Latin: plexus brachialis



The overall organisation of the brachial plexus is a favourite exam topic and the basis of all subsequent branches. Master it using the following mnemonic!

Rugby Teams Don't Cover Bruises

  • Roots
  • Trunks
  • Divisions
  • Cords
  • Branches

However, the above organisation is a piece of cake compared to the branches and their sources. The following mnemonic can give you a hand to remember them!


Lateral cord branches: Rugby players are Long Legged Movers

  • Lateral pectoral
  • Lateral root of median
  • Musculocutaneous

Medial cord branches: Rugby players Make Many Moves Using Muscles

  • Medial pectoral
  • Medial cutaneous nerve of arm
  • Medial cutaneous nerve of forearm
  • Ulnar nerve
  • Medial root of median nerve

Posterior cord branches: Rugby players are ULTRA competitive

  • Upper subscapular
  • Lower subscapular
  • Thoracodorsal nerve
  • Radial nerve
  • Axillary nerve
Thanks and Regards
Dr.Jaishree Tiwari

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