Anatomy Concerning brachial plexus, which of the following facts are true A Formed by spinal nerve C5- C8 and T1 B Most common site of injury is upper trunk C Injury may occur, during breech delivery D Radial nerve is branch of medial cord 💡 Explanation Concerning brachial plexus, which of the following facts are true ✓ Correct Answer: A. Formed by spinal nerve C5- C8 and T1