DISSECTION OF THE UPPER LIMB. 



civ 



cv 



1C W 



FIG. 8. DIAGRAM OF THE BRACHIAL PLEXUS. THE DOTTED LINE INDICATES 

 THE LEVEL AT WHICH THE CORDS ARE CROSSED BY THE CLAVICLE. 



Infraclavicular branches : 



From outer cord 

 eat. External anterior thoracic, 

 me. Musculo-cutaneous. 

 in. Median. 



From inner cord 

 iat. Internal anterior thoracic, 

 w. Nerve of Wrisberg. 



c iv. to c. vin. Fourth to eighth 

 cervical nerves. 



D i. and D ii. First and second 

 dorsal nerves. 



1 i and 2 i. First and second inter- 

 costal nerves. 



ih. Intercosto-humeral nerve. 



phr. Phrenic nerve. 



Supraclaviatlar branches of brachial 

 plexus : 



rh. Branch to rhomboids, 

 sps. Suprascapular. 

 sc. Branch to subclavius. 

 pt. Posterior thoracic. 



ic. Internal cutaneous. 

 u. Ulnar. 

 m. Median. 



From posterior cord 

 s 1. Upper. 

 s 2. Middle. 

 s 3. Lower subscapular. 

 c. Circumflex, 

 ms. Musculo-spiral. 



