This is about the anatomy of an upper brachial plexus injury, also known as Erb's palsy. Damage to the upper or superior trunk of the brachial plexus affects neurones running from the C5 and C6 roots to the axillary, suprascapular and musculocutaneous nerves in particular.

If we look at this anatomy and the muscles supplied by these nerves we can work out which muscles are likely to be weak, paralysed and/or atrophied, explaining the classical presentation of the upper limb in this injury. We will also consider what sensation in the upper limb might be affected and what movements might test for this.

If nothing else we'll have a better understanding of why we need to study the anatomy of the very complex brachial plexus.


Music by Jahzzar
Album: HiFi City Tales
Song: Bodies
  / jahzzar​​