Innervates all flexors in the arm and the skin of the forearm.
Innervates the deltoid and teres minor muscles, which laterally rotates the arm.
Innervates all extensors in the arm and forearm.
Innervates most flexors in the forearm and 5 hand muscles.
Innervates 1-1.5 flexors in the forearm and the remaining hand muscles.
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