THE PANCREAS 



317 



the cell, but during digestion they disappear with the discharge 

 of the secretion, the width of the granular zone gradually decreas- 

 ing, that of the non-granular basal zone being correspondingly 

 enlarged. 



With the increased breadth of the basal zone during secretion, 

 there appears in this porton of the cell a structure which has been 

 described by Nussbaum * as the Nebenkern, and which has been 



>F THE HUMAN PANCREAS. 



The acinus at a is connected with an intercalary duct, cut in tengential section, and 

 occupying the center of the figure. Hematein and eosin. Photo, x 950. 



carefully studied by Mathews. f This is a spheroidal basophile 

 body which lies near the nucleus and is frequently surrounded by 

 a clear area of cytoplasm. Its origin and function are somewhat 

 doubtful and it is possible that several distinct bodies have been 



* Arch. f. mik. Anat, 1885. 



fJ. of Morph., 1899. 



