In the lecture on ortho-neuro overlap, C8 is finger extension. However, in the lecture on SCI, C8 is finger flexors on ASIA.
Furthermore, when I searched online, some websites also stated C5 is shoulder abduction and C6 is elbow flexion. But in the above two lectures, C5 is elbow flexion.
Can you please clarify what would be the correct myotome for UE? Thank you very much!