Wow! That is incredible.I think you deserve a nobel prize for discovering, from Netter/Rohen , the seventeen nerves that originate from the Brachial plexus. The only problem is that... I seriously doubt your ability to trace it out on the body .
Contribution to phrenic nerve runs down the anterior mediastinum.
Long Thoracic Nerve of Bell runs laterally down thoracic wall to serratus anterior.
Dorsal Scapular Nerve runs superiorally over to innervate inferior portion of traps and the rhomboids.
Neve to Subclavius makes a beeline for... subclavius
Suprascapular Nerve runs into through the suprascapular notch under the transverse ligament then through the spinaglenoid notch
Lateral Pectoral Nerve runs to pec major, medial to pec minor
Medial Pectoral Nerve pieces pec minor on its way up to pec major
Upper/Lower Subscapular nerves run to... subscapularis, with lower innervating teres major along the way
Thoracordosal nerve makes a beeline down the thoracic wall for lat dorsi
Medial Cutaneous Nerve of the Brachium comes superficially along the, you guessed it, medial side of the brachium
Medial Cutaneous Nerve of the Antebrachium... well... you guess it
Musculocutaneous pieces coracobrachialis, innervates the the flexor brachium, then continues as the lateral cutaneous branch of the antebrachium superior to brachioradialis.
Median nerve runs medially down your whole arm, giving off the anterior interosseus
Ulnar Nerve runs down the side of the... ulna!, along the medial epicondyle of the humerus.
Radial nerve runs along... the radial groove! splitting into superficial and deep branches, with the deep branch becoming the posterior interosseus n. and the superficial proceeding under brachioradialis before passing over the anatomical snuffbox
Axillary nerve dives deep through the quandrangular space with the posterior circumflex humeral a. to power deltoid and teres minor.
And no, I'm not studying this right now. We covered this a good 4 weeks ago.
Tracing the brachial plexus is EASY because each nerve IS so long and because each nerve has a specific destination in mind. The names often reflect what they do. As long as you can tie the names to structures you're GOLDEN. Granted, you can't learn all that in just a half hour, but easily in just one afternoon as long as you have your bearings.