FALSE statement about Brachial plexus

(C) Long thoracic nerve arises from posterior cord POSTERIOR CORD BRANCHESNameRootsSuppliesUpper Subscapular NerveC7-C8Subscapularis muscle of the rotator cuffLower Subscapular NerveC5-C6Teres majorThoracodorsal NerveC6-C8Latissimus dorsi muscleAxillary NerveC5-C6Deltoid and Teres minorRadial NerveC6-C8Triceps brachii muscle, Brachio-radialis muscle, Extensor muscles of the fingers and wrist (Extensor carpi radialis muscle), and Extensor and Abductor muscles of the thumb # Long thoracic nerve innervates serratus anterior. Overhead abduction is not possible in paralysis of nerve to serratus anterior.> This muscle is helpful in pushing + punching actions.> Touch the opposite shoulder: This is Dugas test for Anterior dislocation of shoulder.> Lift a heavy object from the ground: This will require many muscles and is not used specifically for any single muscle.> Shrug the shoulders test: trapezius (supplied by Spinal accessory nerve).# Posterior Cord Branches STAR - Subscapular (upper and lower), Thoracodorsal, Axillary, Radial ULTRA- Upper subscapular, Lower subscapular, Thoracodorsal, Radial, Axillary> Lateral Cord Branches LLM "Lucy Loves Me" - Lateral pectoral, Lateral root of the median nerve, Musculocutaneous> Medial Cord Branches MMMUM "Most Medical Men Use Morphine" - Medial pectoral, Medial cutaneous nerve of arm, Medial cutaneous nerve of fire- arm, Ulnar, Medial root of the median nerve