290 



ANATOMICAL TEOBNOLOGY. 



ing the concave side up ; the duodenum to the left, so that its right 

 side looks directly upward ; it was then sliced off to the level of the 

 ampulla of Vater and the duct of Santorini. 



Explanation of Fig. 82.— 1. Pylorus. 



2. The duct of Santorini passing obliquely through the duodenal walls. 



3. Out end of the inferior pancreaticoduodenal artery. 



4. Same for the corresponding vein. 



5. The duodenal branch of the duct of Wiisung. 



5. Cut end of the duodenal pancreas, showing triangular section, and the intestine 

 partly enveloped by it. 



6. The ampulla of Vater. 



7. The duct of Wirsung, opening into the ampulla. 



8. The ductus communis choledochus, also opening into the ampulla. 



9. The duodenal branch of the duct of Wirsung. 



10. The gastro-splenic branch displaced. 



11. Duct from the pancreatic reservoir opening by a large branch into 10, and by a small 

 one into 7. 



13. Pancreatic reservoir covering part of 

 the cholecyst. 



13. The " impeding flexures " in the 

 cystic duct. 



14. The cholecystis constricted in the 

 middle, as is also the pancreatic reservoir, 

 by a firm wide band passing over them. 



15. 15. The cystic lobe of the liver. 



Preparation— Fig. 83.— The 

 ventral wall of the duodenum 

 was partly removed to show the 

 openings of the ducts, which had 

 been exposed by dissection. 



Explanation of Fig. 83. — 1. Pylorus. 



3 and 4. Duct of Wirsung. 



3. Duct of Santorini anastomosing freely 

 with the preceding, and opening into the 

 intestine between the aperture of the am- 

 pulla of Vater and the pylorus. 



5. Ductus communis choledochus. 



6. Opening of the duct of Santorini at the summit of a papilla. 



7. Opening of the ampulla at the summit of u, similar papilla. These openings are 

 usually about 10-15 mm. apart. 



Fie. 83. — Ventral View of the Human 

 Pancreatic Ducts. (After Bernard, 

 17). X.5. 



§ 750. Ductus Wirsuiigianus — Duct of Wirsung, principal pan- 

 creatic duct. — This, in the catj is usually the larger of the two 

 pancreatic ducts, as in man. It opens into a small reservoir, am- 



