Brachial Plexus Block

 
From
Nerve
Roots
Muscles
Cutaneous
Roots
Long thoracic nerve
C5, C6, C7
Serratus anterior
 
 
Dorsal scapular nerve
C4, C5
Rhomboid muscles and levator scapulae
 
 
Phrenic nerve
C5
Diaphragm
 
Upper trunk
Suprascapular nerve
C5, C6
Supraspinatus and infraspinatus
 
 
Nerve to subclavius
C5, C6
Subclavius
 
Posterior cord
Radial nerve
C5, C6, C7, C8, T1
Triceps, supinator, brachioradialis, extensor muscles of the forearm
Posterior cutaneous nerve of the arm
 
Axillary nerve
C5, C6
Anterior branch: deltoid
Posterior branch: teres minor, deltoid
Upper lateral cutaneous nerve of the arm
 
Thoracodorsal nerve
C6, C7, C8
Lattisimus dorsi
 
 
Upper subscapular nerve
C5, C6
Subscapularis
 
 
Lower subscapular nerve
C5, C6
Subscapularis and teres major
 
Medial cord
Ulnar nerve
C8, T1
Flexor carpi ulnaris, flexor digitorum profundus, intrinsic hand muscles except thenar muscles and 2 lateral lumbricals
Medial side of hand, medial 1 ½ fingers on palmar side and medial 2 ½ fingers on the dorsal side
 
Medial root of median nerve
C8, T1
Fibres to the median nerve
Portion of hand not supplied by ulnar or radial nerve
 
Medial pectoral nerve
C8, T1
Pectoralis major, pectoralis minor
 
 
Medial cutaneous nerve of the arm
C8, T1
 
Medial side of arm
 
Medial cutaneous nerve of the forearm
C8, T1
 
Medial side of forearm
Lateral cord
Lateral pectoral nerve
C5, C6, C7
Pectoralis major, pectoralis minor
 
 
Musculocutaneous nerve
C5, C6, C7
Coracobrachialis, brachialis and biceps brachii
Lateral cutaneous nerve of the forearm
 
Lateral root of median nerve
C5, C6, c7
Fibers to the median nerve