RELATIONS OF NERVES 



993 



Table Showing Relation of Cervical and Thoracic Nerves to 

 Branches of Brachial Plexus 



Nerves Contributing. Nerves, Branches of Plexus. 



5C ( Dorsal scapular (nerve to rhomboids) 



\ Nerve to subclavius 



(' Suprascapular 

 c J p c' I Nerve to subclavius 



^^^^^^ i Upper subscapular 



I Lower subscapular 



'' Axillary (circumflex) 

 ti fi anrl 7 r / Loug (posterior) thoracic 



o, D, ana / ^ -j^ Lateral anterior thoracic 



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



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



(5), 6, 7, 8 C, and 1 T Median 



7 and 8 C Thoraco-dorsal (middle or long subscapular) 



f Medial anterior thoracic 



8 C. and 1 T ] Uhiar 



[ Medial antibrachial (internal) cutaneous 

 IT Medial brachial (lesser internal) cutaneous 



Table Showing the Relations of the Cervical Nerves to the Muscles 



of the Upper Extremity 



Nerves Contributing. 



Muscles. 



Accessory, 2 C Sterno-mastoid 



" 3, 4 C. . . Trapezius 



3 and 4 C Levator scapulae 



' Subclavius 

 Supraspinatus 

 Infraspinatus 

 Subscapularis 



5 and 6C { Teres major 



Teres minor 



Deltoid 



Brachiahs 



Biceps 



Brachioradialis 



6C. 



I ftupmator 



■i Pronator teres 



Flexor carpi radiahs 

 ^ Palmaris longus 

 Ext. carpi radialis longus 

 " " brevis 



6 and 7 C \ Abductor pollicis brevis 



Opponens " 



Flexor pollicis brevis (superf. 



head) 



5, 6, and^7 C ^ Serratus anterior 



' Coraco-brachiahs 

 Ext. digitorum comm. 

 " digiti quinti proprius 



7 C ] " carpi ulnaris 



Abductor pollicis longus 

 Extensor pollicis brevis 

 Extensor pollicis longus 

 Ext. indicus proprius 

 Latissimus dorsi 



7 and 8 C ] Triceps 



[ Anconeus 

 5, 6, 7, and 8 C Pectoralis major 



1 Dorsal inteross. 

 Palmar " 

 Add. pollicis 

 " pollicis trans. 

 I Flex, polhcis brev. (deep) 

 I Pectoralis minor 



7, 8 C, and^l T \ Flex, digit, subl. 



1 Lumbricalis 

 I Flex, carpi ulnaris 

 or^ J rri J " digit, prof. 



8 C. and IT j '< pollicis long. 



[ Pronator quadratus 

 63 



Nerves to Muscles. 



Spinal accessory 



" , 3 and 4 C. 

 3 and 4 C. 



Nerve to subclavius 



Suprascapular 



Upper and lower subscapular 

 Lower subscapular 



Axillary (circumflex) 



Musculo-cutaneous 



Radial (musculo-spiral) 



Deep radial (posterior interosseous) 



Median 



Radial (musculo-spiral) 



Deep radial (posterior interosseous) 



Median 



Long (posterior) thoracic 



Musculo-cutaneous 



Deep radial (posterior interosseous) 



Thoraco-dorsal (long'subscapular) 



Radial (musculo-spiral) 



(( (( it 



Lat. and med. ant. thoracic 

 Ulnar 



Med. ant. thoracic 

 Median 



" and ulnar 

 Ulnar 



" and median 

 Median 



