Upper limb anatomy - Small branches of the brachial plexus (anatomy)

When looking at the anatomy of the brachial plexus we most commonly focus on the major nerves that will run to the upper limb as these are arguably the most important parts. There are a number of smaller branches that supply muscles that move the upper limb but are attached to the shoulder girdle or the rib cage. They are difficult to describe, but let's try. Brachial plexus anatomy: https://youtu.be/e_N7VSawTgI?si=PXHpF8Yez9i83jqY Erb's palsy or upper brachial plexus injury anatomy: https://youtu.be/O_CG8Y9quOQ?si=vSc3yFgsLplOkinA Klumpke's palsy or a lower brachial plexus injury: https://youtu.be/GZj9qGYJv3w?si=Eo5RyCScQ651ZF7c Music: Twin Peaks by Gregory David https://www.epidemicsound.com/track/UI08O2uTL6/