AUERBACH AND MEISSNER'S PLEXUSES. 



317 



Fig. 131. 



Plexus of Auerbach, prepared from the small intestine of a dog, by the action of 

 gold chloride. The nerve-cells are shown at the nodes, while the fibrils pro- 

 ceeding from the ganglia, and the anastomosing fibres, lie between the 

 muscular bundles. 



Fig. 132. 



Plexus of Meissner a, ganglia; b, anastomosing fibres; r, artery; d, vaso-motor 



nerve-fibres accompanying c. 



2. When blood containing the normal amount of blood-gases passes 

 throiigh the intestinal blood-vessels, the quiet peristaltic movements of 



