THE NERVOUS SYSTEM. 



329 



TABLE OF THE SPINAL NERVES. (Continued.) 



f Communicating, 

 f Internal set, J Muscular, { 



Phrenic, 



Cervical plexus f Deep [_ Communicans noni. 



(continued), \ branches, 



External set, j Muscular, 



( Communicating. 



Brachial plexus, 1 



formed by the anterior branches of four lower cervical and first 

 dorsal nerves. 



