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Upper Limb Nerves

Segemental Innervation of the Upper Limbs

MuscleNerveNerve RootOrigin (Brachial Plexus)
Rhomboids Dorsal Scapular C5 Rami
Supraspinatus Suprascapular C5,6 Superior trunk
Infraspinatus Suprascapular C5,6 Superior trunk
Teres Minor Axillary C5,6 Posterior Cord (Terminal branch)
Deltoid Axillary C5,6 Posterior Cord (Terminal branch)
Subclavius Subclavius C5,6 Superior Trunk
Subscapularis Upper & Lower Subscapular C5,6 Posterior Cord
Teres Major Lower Subscapular C5,6 Posterior Cord
Pectoralis Major (clavicular head) Lateral Pectoral C5,6 Lateral Cord
Pectoralis Major (sternal head) Medial Pectoral C7,8; T1 Medial Cord
Pectoralis Minor Medial Pectoral C7,8; T1 Medial Cord
Serratus Anterior Long Thoracic C5,6,7 Rami
Latissimus Dorsi Thoracodorsal C6,7,8 Posterior Cord
Biceps Brachii Musculocutaneous C5,6 Lateral Cord (Terminal branch)
Brachialis Musculocutaneous C5,6 Lateral Cord (Terminal branch)
Brachioradialis Radial C5,6 Posterior Cord (Terminal branch)
Supinator Radial C5,6 Posterior Cord (Terminal branch)
Coracobrachialis Musculocutaneous C6,7 Lateral Cord (Terminal branch)
Extensor Carpi Radialis Longus Radial C6,7 Posterior Cord (Terminal branch)
Pronator Teres Median C6,7 Lateral Cord (Terminal branch)
Flexor Carpi Radialis Median C6,7 Lateral Cord (Terminal branch)
Extensor Carpi Radialis Brevis Radial C6,7,8 Posterior Cord (Terminal branch)
Anconeus Radial C7,8 Posterior Cord (Terminal branch)
Triceps Brachii Radial C7,8 Posterior Cord (Terminal branch)
Extensor Digitorum Radial C7,8 Posterior Cord (Terminal branch)
Extensor Digiti Minimi Radial C7,8 Posterior Cord (Terminal branch)
Extensor Indicis Radial C7,8 Posterior Cord (Terminal branch)
Extensor Carpi Ulnaris Radial C7,8 Posterior Cord (Terminal branch)
Abductor Pollicis Longus Radial C7,8 Posterior Cord (Terminal branch)
Extensor Pollicis Brevis Radial C7,8 Posterior Cord (Terminal branch)
Extensor Pollicis Longus Radial C7,8 Posterior Cord (Terminal branch)
Flexor Carpi Ulnaris Ulnar C7,8 Medial Cord (Terminal branch)
Flexor Digitorum Superficialis Median C7,8; T1 Lateral Cord (Terminal branch)
Flexor Digitorum Profundus Median & Ulnar C7,8; T1 Lateral & Medial Cords (Terminal branch)
Flexor Pollicis Longus Median C8; T1 Lateral Cord (Terminal branch)
Pronator Quadratus Median C8,T1 Lateral Cord (Terminal branch)
Abductor Pollicis Brevis Median C8; T1 Lateral Cord (Terminal branch)
Flexor Pollicis Brevis Median C8; T1 Lateral Cord (Terminal branch)
Opponens Pollicis Median C8; T1 Lateral Cord (Terminal branch)
Adductor Pollicis Ulnar C8; T1 Medial Cord (Terminal branch)
Adductor Digiti Minimi Ulnar C8; T1 Medial Cord (Terminal branch)
Flexor Digiti Minimi Ulnar C8; T1 Medial Cord (Terminal branch)
Opponens Digiti Minimi Ulnar C8: T1 Medial Cord (Terminal branch)
Lumbrical I, II Median C8; T1 Lateral Cord (Terminal branch)
Lumbricals III, IV Ulnar C8; T1 Medial Cord (Terminal branch)
Interossei Ulnar C8; T1 Medial Cord (Terminal branch)
Created by: sueswes@aol.com
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