104 



DR. C. F. SONNTAG ON THE VAGUS AND 



ganglion of the sympathetic. Two small ascending branches pass 

 to ganglia whence fibres run np to, and along the course of the 

 arteries. At the level of these ganglia the common carotid artery 

 divides into thyroid, ectocarotid, entocarotid,and occipital arteries, 

 and fibres from the ganglia accompany them. The ganglia also 

 communicate with the superior cervical ganglion of the sympa- 

 thetic. 



Text-figure 3. 



D.C.P. 



The cervical and anterior thoracic parts of the vagus and sympathetic nerves in 

 Etiphractus villosus. The superior cervical ganglion (S.C.G) has been 

 cut down as it is very large and round and masks other structures. 

 Letters in text. 



The Cardiac Nerves (/) : — The two cardiac branches of the left 

 vagus end in a well-marked ganglion lying in front of the lower 



