What are similarities and differences of the cat dissection specimen brachial plexus and the human brachial plexus?

The brachial plexus is innervated or full of nerves in both cats and humans. The brachial nerve in cats seems more densely populated probably because of the cats use of its forelimbs when it walks. Humans do not use their arms in this way - human arms are therefore longer, or extend out longer.