THE SYMPATHETIC NERVE SYSTEM. 571 



and a few secretor nerves, it will be recalled, come to these 



glands from the superior cervical ganglion. 



Peripheral Ganglia. Among the peripheral ganglia may be 

 mentioned those in the heart and those in the intestinal walls. The 

 pre-ganglionic fibers are contained in the trunk of the vagus nerve. 

 Stimulation of the peripheral end of the divided vagus gives rise to 

 inhibition of the heart, contraction of the walls of the stomach and 

 intestines, secretion from the gastric and perhaps the pancreatic 

 gland. 



