THE TENTH NERVE, VAGUS OR PNEUMOGASTRIC NERVE 559 

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FIG. 390. 



FIG. 



FIG. 390. The Distribution of the Tenth or Vagus Nerve. Va.R, Va.L., Right and left vagi; r, 

 ganglion of the root and connections with Sy., sympathetic, superior cervical ganglion; g.Ph., glosso- 

 pharyngeal; A cc., spinal accessory nerve; m, meningeal branch; A ur., auricular branch; t, ganglion 

 of the trunk and connections with Hy., hypoglossal nerve; Ci, 2, loop between the first two cervi- 

 cal nerves Sy., sympathetic, Ace., spinal accessory nerve; Ph., pharyngeal branch; Ph.PL, 

 pharyngeal plexus; S.L., superior laryngeal nerve; I.L., internal laryngeal branch; E.L., external 

 laryngeal branch ; I. C., internal, and E.G., external carotid arteries; Cai, superior cervical cardiac 

 branch; Caz, inferior cervical cardiac branch; R.L., recurrent laryngeal nerve; Cas, cardiac 

 branches of recurrent laryngeal nerve; 0,4, thoracic cardiac branch (right vagus); A. P. PL, an- 

 terior, and P. P. PL, posterior pulmonary plexuses; Oes.PL, esophageal plexus; Gast.R. and 

 Gast.L., gastric branches of vagus (right and left) ; Coe.PL, celiac plexus; Hep. PL, hepatic plexus; 

 PI., splenic plexus; Ren.PL, renal plexus. (Cunningham.) 



FIG. 391. The Constitution of the Cardiac Plexus. Sy., Cervical sympathetic cord; C. i, 

 superior, C.2, middle, and C.j,, inferior cervical ganglia; Car.i, superior, Car. 2, middle, and 

 Car. 3, inferior cervical cardiac sympathetic branches; Va., vagus nerve; R.L., recurrent laryngeal 

 nerve; s, superior, and i, inferior cervical cardiac branches of vagus; D.C.P., deep cardiac plexus; 

 5. C. P., superficial cardiac plexus; A.P.P., anterior pulmonary plexus; P. P.P., posterior pulmo- 

 nary plexus; R.Car.P., right, and L.Car.P., left coronary plexuses; Art.PuL, pulmonary artery. 

 (Cunningham.) 



