68 THE UPPER EXTREMITY 



cutaneous nerve) is chiefly destined for the supply of the 



Posterior supraclavicular nerves 



Lateral cutaneous nerve of arm 



/ Posterior cutaneous nerve of 



\arrn 



/ Posterior cutaneous nerve of 



\ forearm, upper branch 



Intercosto-brachial nerve 



- Medial cutaneous nerve of arm 

 Posterior cutaneous nerve of fore- 

 arm, lower branch 



Medial cutaneous nerve of forearm, 

 ulnar branch 



Lateral cutaneous nerve of forearm, 

 dorsal branch 



_Superficial division of radial (O.T. nmsculo- 

 spiral = radial nerve of O.T.) 



Dorsal branch of ulnar nerve 



FIG. 28. Cutaneous Nerves on the Dorsal Aspect of the Upper Extremity. 



skin of the forearm. It appears through the deep fascia 

 half-way down the medial side of the arm close to the 



