GLANDS 



145 



FIG. 98. SECTION OF PART OF THE SUBMAXILLARY GLAND (X 250). 



A. Narrow duet from terminal lobules. 



B. Small duct in T. S. 



C. Small duct in oblique section. 



D. Transversely divided acini, showing large lumen. 



E. Mucus remaining in the lumina. 



F. Striated muscular fibers. 



G. Adipose tissue. 



THE PANCREAS 



The histology of the pancreas is, in general, that of a true 

 serous gland, like the parotid. It has been called by physiolo- 

 gists the abdominal salivary gland. 



The lobules are more tubular and less regular in size and 

 form; and the lumen of the acini is much less easy of demon- 

 stration, in an ordinary hardened section, than the same in the 

 parotid. 



The branches of the pancreatic duct are provided with a very 

 thick adventitia, are lined with short columnar cells, and seldom 

 present the dilatation which generally occurs in a serous gland on 

 entering the lobule. 



