- See:
- Brachial Plexus
- Exam of the Cervical Spine:
- Preganglionic Injury
- Work Up for Brachial Plexus Injuries:
Muscles Root Level Origin
- Trapezius C3 C4 spinal accessory
- Rhomboids C5 C5 root dorsal scapular
- Supraspinatus C5 C6 upper trunk suprascapular
- Deltoid C5 > C6 posterior cord axillary
- Serratus C5 C6 C7 long thoracic
- Subscapularis C5 C6 upper trunk subscapular
- Biceps C5 > C6 lateral cord musculocutaneous
- Triceps C5 C6 C7 C8 T1 posterior cord radial
- ECRL C6 C7 posterior cord radial
- EDC C6 C7 C8 posterior cord radial
- ECU C7 > C6 posterior cord radial
- Pronator Teres C7 > C6 lateral cord median
- FCR C7 > C6 lateral cord median
- FCU C8 > C7 medial cord ulnar
- FDP (2 and 3) C8 > C7 medial cord median
- FDP (4 and 5) C8 > C7 medial cord ulnar
- Interosseous T1 > C8 medial cord ulnar