THE PANCREAS 



315 



of Wirsimg and Santorini. The lobules are united by a delicate 

 and relatively very loose connective tissue. 



The ducts of the pancreas branch and arborize in the same 

 manner as those of the salivary glands. The interlobular ducts 



FIG. 259. FROM A SECTION OF THE HUMAN PANCREAS, SHOWING SEVERAL LOBULES AND 



THE BROAD INTERLOBULAR BANDS OF CONNECTIVE TISSUE. 



a, blood vessel; ft, island of Langerhans; c, intralobular duct; d, interlobular duct and 

 accompanying artery. Hematein and eosin. Photo, x 45. 



are lined by a single layer of columnar cells ; in the larger divi- 

 sions occasional goblet cells are found. The wall of the inter- 

 lobular pancreatic ducts is much thicker than in those of the 

 salivary glands, for they possess a much thicker connective tissue 

 coat, in which are also many longitudinal smooth muscle fibres. 



