BRACHIAL PLEXUS OF NERVES IN MAN 375 



The nerves caudal to the seventh cervical can be excluded in 

 23 per cent of the cases. 



71. The thoracodorsal nerve arises either directly from the 

 posterior fasciculus of the plexus or from a nerve that takes 

 origin from the posterior fasciculus in over 70 per cent of the 

 plexuses. In over 5.5 per cent of the cases it arises from the 

 radial nerve and in the same number from the axillary nerve. 



72. In over 71 per cent, none of the nerves of the plexus can 

 be positively excluded from sending fibers to the thoracodorsal 

 nerve. 



LITERATURE CITED 



Adolphi, Hermann 1898 Ueber das Verhaltenden des zweiten Brustnerven 



zum Plexus brachialis beim Menschen. Anat. Anz., Bd. 15, pp. 98-104. 

 Bardeen, Charles R. 1900 Outline Record Charts used in the Anatomical 



Laboratory of the Johns Hopkins University. The Johns Hopkins 



Press. Baltimore. 



1901 A statistical study of the variations in the formation and position 



of the lumbosacral plexus in man. Anat. Anz., Bd. 19, pp. 124-135, 209- 



238 

 Birmingham, A. 1895 The nerve of Wrisberg. Jour. Anat. and Physiol., vol. 



20, p. 63. 

 Cunningham, D. J. 1877 Note on a connecting twig between the anterior 



divisions of the first and second dorsal nerves. Jour. Anat. and 



Physiol., vol. 11, p. 539. 

 EcKHARD, C. 1862 Lehrbuch der Anatomie des Menschen, p. 332. 

 Harman, Bishop 1900 The anterior limit of the cervicothoracic visceral 



efferent nerves in man. Jour. Anat. and Physiol., vol. 34, pp. 357-380. 

 Harris, Wilfred 1903 Prefixed and postfixed types of brachial plexus. 'Brain, 



vol. 26, pp. 613-615. 



1904 The true form of the brachial plexus, and its motor distribution. 



Jour. Anat. and Physiol, vol., 38, pp. 399-442. 

 Herringham, W. p. 1887 The minute anatomy of the brachial plexus. Proc. 



Roy. Soc. London, vol. 41, pp. 423-441. 

 Kaufmann, Fr. 1864 Die VarietJiten der Plexus brachialis, Giessen. 

 Kerr, AbramT. 1907 Statistical studies of the brachial plexus in man. Anat. 



Rec, vol. 1, p. 53. 

 Lucas, R. Clement 1875 On the normal arrangement of the brachial plexus 



of nerves. Guys Hospital Reports. London, 3CXX pp. 539-546. 

 Paterson, a. M. 1896 A discussion of some points of the distribution of the 



spinal nerves. Jour. Anat. and Physiol., vol. 30, pp. 530-538. 

 Schumacher, Siegmund V. 1908 Zur Kenntnis der segmentalen Innervation 



der oberen Extremitiit des Menschen. Sitzungs d. Kaiserl. Akad. der 



Wissensch. tVein 117, pp. 131-209. 



