In a refreshing change from all the lawyer blogs that talk about Brachial Plexus (this one included), I found a blog that explains a lot about the functional anatomy of the Brachial Plexus nerve bundle.
It is a list with a description of each of the nerves involved.
The components of the Brachial Plexus is a topic that is always important to review, as it is so significant to everyday clinical practice. Here is a brief overview of the divisions and actions of each component.
Enjoy. Just go directly to this link and read through it if you are so inclined to dive this deep into the inner workings of the Bracial Plexus. Functional Anatomy Blog