DIGESTIVE GLANDS. 



213 



the duodenum and the other end touches the spleen. 

 It lies behind the peritoneum and, unlike the salivary 

 glands, it is not enclosed in a fibrous capsule, and is 

 therefore looser and softer in its texture. 



The pancreas develops as two evaginations of the 

 alimentary canal and embryologically, therefore, 



Inter- 

 mediate 

 tubule. 



Inner 

 granular 

 zone of 

 secretory 

 cells. 



Fig. 159. From section through human pancreas (sublimate) (Bohm 

 and Davidoff). 



has two ducts. One of these, the pancreatic duct, 

 or duct of Wirsung, opens jointly with the bile duct 

 on the summit of an elevated papilla, situated at the 

 inner side of the descending portion of the duodenum. 

 This duct extends the length of the pancreas and 

 receives in its course the short ducts from the various 

 lobes composing the gland. 



