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THE NERVOUS SYSTEM 



TABLE SHOWING RELATION OF CERVICAL AND THORACIC NERVES TO BRANCHES 



OF BRACHIAL PLEXUS 



NERVES CONTRIBUTING. NERVES, BRANCHES OF PLEXUS. 



Dorsal scapular (nerve to rhomboids) 

 Nerve to subclavius 

 Suprascapular 

 Nerve to subclavius 



5 and 6 C Upper subscapular 



Lower subscapular 

 * Axillary (circumflex) 

 , / Long (posterior) thoracic 



5, b, and / U | External anterior thoracic 



5, 6, and (7) C Musculo-cutaneous 



(5), 6, 7, 8 C Radial (musculo-spiral) 



(5), 6, 7, 80., and 1 T. Median 



7 and 80 Thoraco-dorsal (middle subscapular) 



{Internal anterior thoracic 

 Ulnar 

 .Medial antibrachial (internal) cutaneous 

 IT Medial brachial (lesser internal) cutaneous 



TABLE SHOWING THE RELATIONS OF THE MUSCLES OF THE UPPER EXTREMITY TO 



THE CERVICAL NERVES 



NERVES CONTRIBUTING. MUSCLES. NERVES TO MUSCLES. 



llth cranial, 20... Sterno-mastoid Spinal accessory 



3, 40. . Trapezius " , 3 and 4 C. 



3 and 40 Levator scapulas 3 and 4 C. 



Subclavius Nerve to subclavius 



Supraspinatus | g } 



Infraspinatus J 



Subscapularis Upper and lower subscapular 



5 and 60 \ Teres major Lower subscapular 



Dehoid lin0r I Axill;ir >" (circumflex) 



Brachialis l Musculo _ cutane ous 



Biceps 



Brachioradialis Radial (musculo-spiral) 



Supinator Deep radial (posterior interosseous) 



60 Pronator teres Median 



Flexor carpi radialis 



Palmaris longus 



Ext. carpi radialis longus Radial (musculo-spiral) 



" " brevis Deep radial (posterior interosseous) 



Abductor pollicis brevis Median 



6and7C Qpponens " 



Flexor pollicis brevis 

 [ (superf. head) 



5, 6, and 70 Serratus anterior Long (posterior) thoracic 



Coraco-brachialis Musculo-cutaneous 



Ext. digitorum comm. Deep radial (posterior interosseous) 

 " digit! quint! pro- 



prius 

 7 P " carpi ulnaris 



1 Abductor pollicis lon- 

 gus 



Extensor pollicis brevis 

 Extensor pollicis longus " 

 Ext. indicis proprius 

 f Latissimus dorsi Thoraco-dorsal (long subscapular) 



7 and 80 j Triceps Radial (musculo-spiral) 



' Anconeus 



