C spine

C5 – T1 

• C5 (shoulder abduction) ; ยกไหล่

  • Deltiod m.

• C6 (wrist extension) ; กระดกข้อมือ

  • Extensor Carpi radialis longus + brevis m.

• C7 (triceps, wrist flexors, and finger extensors) : งอข้อมือ

• C8 nerve root

  •  Abduction and adduction of the fingers (intrinsic muscle)