UG 



The Pancreatic Ducts in the Dog 



various sizes are formed. The free surfaces are nodulated and the 

 margins are irregularly erenated. (See Figs. 1 and 2.) 



The color is cream-pink to cream-red, varying according to the 

 amount of venous engorgement in chloroformed animals. Usually sev- 

 eral small lobes are much injected. 



The gland is bent acutely on itself near its middle, giving it a /\ 

 shape. The left limb, caucla pancreatis (termed splenic by Owen), is 

 the shorter; it runs in the dorsal wall of the bursa omentalis, caudo- 

 sinistralward from the pylorus, dorsal to the stomach, toward or to 

 the left kidney upon which it may abut with a broad concave end; the 

 a. and v. lienalis groove, its anterior border and the colon transversum 





z 3^5 i ^ s y /o '/ ^2 ■'3 /I ys /i // ^f f ^o il 2i '■^ ^ " ^' ^7 " ^7 *" 



(See F,^.I3 ^>rl^/>es) 



Fig. 3. To show the, frequency of occurrence of the types of the pancreatic ducts 



in the doa: as observed in oO consecutive cases. 



is capped by its posterior surface. The right limb, caput pancreatis 

 (termed duoclorsal by .^Owen), extends in the mesoduodenum caudalward 

 from the pylorus on the dorsal side of the duodenum nearly to the bend 

 of the latter. It is longer, thinner and narrower than the left limb, 

 and but for the influence of human anatomy, the terms " caput " and 

 " Cauda " pancreatis would here be reversely applied. The anterior 

 5-7 cm. rests on the duodenum, overlapping it somewhat on both sides ; 

 the remainder diverges dorsalward from the duodenum. The plane of 

 this limb is sagittal while that of the left limb is principally frontal. 

 At the apex of the /\ the pancreas is folded or twisted on itself so 

 that the left limb is turned on its main axis through nearly 180°, The 

 probable origin of this twisi and the relation of the pancreas to the 

 peritoneum are shown in Fig. 4, which represents diagrammatically the 



