ON THE INNERVATION OF THE DIGESTIVE TUBE 



ALBERT KUNTZ 



The Laboratories of Animal Biology of the State University of Iowa 



FIVE FIGURES 



CONTENTS 



Introduction 173 



Material and methods 175 



Observations 176 



Myenteric plexus 176 



Submucous plexus 179 



Fiber-terminations 182 



Discussion 186 



Summary 190 



Bibliography 191 



INTRODUCTION 



A review of the literature bearing on the morphology of the 

 sympathetic nerv^ous system shows that the histological char- 

 acters of the sympathetic neurones are quite definitely known. 

 Ever since the introduction of the Golgi method, sympathetic 

 neurones have been described. More recently our knowledge 

 of the sympathetic neurones has been furthered by the use 

 of the methylen blue method of Dogiel, the silver reduction 

 method of Cajal and the modified silver reduction method of 

 Bielschowsky. 



Recent investigators, notably Cajal, Dogiel, Michailow and 

 Miiller, have described the neurones in the various parts of the 

 sympathetic nervous system in the Mammalia, including man, 

 in great detail. Each of these investigators has attempted a 

 more or less complete classification of sympathetic neurones 

 according to morphological type. Thus Cajal ('05, '06), whose 



173 



