THE FORM OF THE HUMAN STOMACH 501 



The position of the pylorus is first indicated by the antrum 

 duodenale. The pylorus, like the gastric canal, is primarily an 

 epithelial differentiation, to which the musculature conforms. 



The occurrence of an accessory pancreas near the angular 

 incisure is shown in an embryo of 19.3 mm., in connection with 

 a stomach which would probably have presented a permanent 

 stricture between the pars cardiaca and the pars pylorica, thus 

 giving rise to one form of the so-called hour-glass stomach. 



BIBLIOGRAPHY 



(When translations or two editions are included in the following list, the earlier 

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