646 



NERVOUS SYSTEM. 



and its branches receive a few delicate filaments of communication from the middle and 

 inferior cervical and the upper dorsal ganglia of the sympathetic. 



The pneumogastric frequently sends a very delicate filament to the glosso-pharyngeal 

 nerve, at or -near the ganglion of Andersch. Branches from the pneumogastric join 

 branches from the glosso-pharyngeal, the spinal accessory, and the sympathetic, to form 

 the pharyngeal plexus. 



Distribution. In describing the very extensive distribution of the pneumogastrics, 

 while the nerves upon the two sides do not present any important differences in the 

 destination of their filaments as far down as the diaphragm, it will be seen that the 

 abdominal branches are not the same. The most important branches are the following : 



1. Auricular. 



2. Pharyngeal. 



3. Superior laryngeal. 



4. Inferior, or recurrent laryngeal. 



5. Cardiac, cervical and thoracic. 



6. Pulmonary, anterior and posterior. 



7. (Esophageal. 



8. Abdominal. 



s 



superior taryn^br^^ ^SSSX 

 branch : 10, cerrical car%ac brantln 

 branch of the fifth; 15 lowe 

 spina, nen,s; , p hre ,c S 



FIG. 219. Distribution of the pneumogastric. (Hirschfeld.) 



S! 1 trunk; 3. anasto m o*is with the spinal accessory ; 4, anas- 

 branch (the auricular branch is not shown in the figure) ; 6, 

 ' ?/ ^ ' 9 ' 9 ' ^ferior laryngeal 



; 14, lingual 



