266 



NERVOUS SYSTEM. 



THE NERVOUS SYSTEM. -Continued. 



NERVES OF THE UPPER EXTREMITY. 

 TERMINAL BRANCHES OF THE BRACHIAL PLEXUS. 



' (i) EXTERNAL ANTERIOR THORACIC, to Pectoralis major. 



f Coraco-brachialis. 

 Muscular, to . . j Biceps. 



1 Brachialis anticus. 



(2) EXTERNAL or 

 MUSCULO- 



CUTANEOUS. 



(3) MEDIAN. 



Anterior Br. 



Posterior Br. 



f Skin of forearm (front). 

 { Skin of ball of thumb, 

 [joins Radial Nerve. 



[Skin of forearm (back). 

 I Joins Radial Nerve. 

 1 Joins Ext Cutan. Br. of 

 [ Musculo-spiral N. 





Articular Br. j to Elbow-joint. 



f Pronator radii teres. 



Flex, carpi rad. 

 Muscular, te.. j Palm . longus . 



[Flex. subl. digit. 



[to Flex. long. poll. 

 \ to Flex. prof, digit. (Ext. %.} 

 ' [to Pronat. quadrat. 



Palmar f Skin of palm. 



Cutaneous. \ Skin of ball of thumb. 



to Abduct, poll, 

 to Opponens poll. 

 External Br. . to Flex. brev. poll. 

 Digital, to thumb. 

 Digital, to ist finger. 



(Digital, to contiguous sides 

 of index, middle and ring 

 Internal Br. . . \ fingers. 



Filaments to two outer Lum- 

 l bricales. 



