I - Upper division < 



Spinal cord 

 Ganglion — 



Esophagus 



II - Middle 



division, or 

 sympathetic 

 system < 



Adrenal gland 

 Kidney 



III - Lower 



division s 



■Tear gland 



Parotid gland ^ 



Submaxillary 

 gland 



■ Sublingual 

 gland 



Salivary 

 glands 



/^f 



Trachea 



X 



Lung 



\ 



Heart 



Diaphragm 



Nerve from 



upper division 

 to stomach 



— Nerve from 

 sympathetic system 

 to stomach 



Stomach 



Liver 



Large intestine 



Small intestine 



Bladder 



THE AUTONOMIC NERVOUS SYSTEM 



A double chain of ganglia in front of the vertebral column connects the vegetative, 

 or co-ordinating, system into a well-knit whole. These ganglia are connected not 

 only with each other, but also with the circulatory, digestive, excretory, and repro- 

 ductive organs, the glands, and the spinal nerves as well. Thus the unconscious and 

 involuntary processes are tied up with the conscious and voluntary ones 



