1 3 o 



THE NERVOUS SYSTEM 



T.I. 



FIG. 62. Diagram to show the branches and the mode of formation of the 

 Cervical and the Brachial Plexuses. (TURNER'S Anatomy.} 



Cl. Line of clavicle. 

 L. Lateral cord. 

 L.T. Lower trunk. 

 M. Medial cord. 

 M.T. Middle trunk. 

 P. Posterior cord. 

 S. Sympathetic trunk. 

 U. T. Upper trunk. 



a. Axillary (circumflex) nerve. 

 c. Grey ramus communicans. 

 c.c. Nervus cutaneus colli. 

 d.s. Dorsalis scapulae nerve (to rhom- 

 boids). 

 g,a. Great auricular nerve. 



/. Nerve to levator scapulae. 

 l.o. Lesser occipital nerve. 

 l.a.t. Lateral anterior thoracic nerve. 



/./. Long thoracic nerve (of Bell). 

 m. Median nerve. 



m.a.c. Medial cutaneous nerve of fore- 

 arm. 



m.b.c. Medial cutaneous nerve of arm. 

 m.a.t. Medial anterior thoracic nerve. 

 me. Musculo-cutaneous nerve. 

 p. Phrenic nerve. 

 r. Radial (musculo-spiral) nerve. 

 r.d.c. Ramus descendens cervicalis. 

 .y. Subscapular nerve. 

 sc. Supraclavicular nerves. 

 ss. Suprascapular nerve. 

 t. Nerve to trapezius. 

 t.d. Thoraco-dorsal (long subscapular) 



nerve. 

 . Ulnar nerve. 



