ijo American QaarUrh _V>V- 



duct of Wirsung is easily found, as it is lar^e and close to the 

 ductus choledochus iFig^. I., II., 7, S).* 



The duct of Santorini is usually much smaller than the 

 preceding, and is, therefore, more difficult to find, especially 

 as there is often an artery of about its own size piercing the 

 intestine near it. It may be found without much difficulty, 

 however, by carefully tearing away the mesentery- on the ven- 

 tral surface of the duodenal pancreas, when one point will be 

 found where a spur of the gland substance clings to the intes- 

 tine; in this the duct is inclosed. The artery spoken of above 

 is not so imbedded in the gland tissue, and therefore need not 

 be m^istaken for the duct. It may seem unnecessary to be so 

 strenuous as to the duct of Santorini, but when it is remember- 

 ed that the ducts very freely anastomose, it will be seen that 

 no crucial experiment could be made to determine the effect of 

 shutting off the supply of pancreatic juice if either of the 

 ducts were left open. See the experiments of Schiff. rendered 

 inconclusive by ignoring one of these ducts (15, ZSS^ 



In Plate XII., Fig. II., 12, is shown, actual size, a curious anom- 

 aly in the cat ; viz., a parureaiic resfrrvir, analogous to the 

 gall-bladder. In this case it is larger than the latter and part- 

 ly covers it. The two are very closely bound together for 

 about half their longitudinal extent, by a broad, firm band, 

 which produces a decided constriction in both. The walls of 

 the reservoir are very firm and thick, as cire also those of its 

 duct (Fig. II.. 11). The duct is nearly straight, and bifurcates 

 before terminating, sending the larger branch to the gastro- 

 splenic division of the duct of Wirsung. and the smaller to 

 the common trunk (Fig. II., 11, 7 and loj. The communica- 

 tion between the pancreatic reserroir and the duct of Wir- 

 sung seemed to be entirely free, as air or liquid could be read- 

 ily forced in either direction. There was no communi- 

 cation whatever between the pjancreatic reservoir or its 

 duct and the gall-bladder or the ductus choledochus. But 

 one instance is on record of the presence of a similar reser- 

 voir, and that case was described and figured by Mayer 

 in 1S15 \2i, 297, Tab. III., Fig. 4I. Its size relative to the gall- 

 bladder was less, and the duct termiaated in the trunk of the 



*Ln ~£sh Hzuntak, jSie i^r-mc cboiedocais may be mi-oe very oovjans ty pressiTig an the gaD- 



bbdder so as lo fill it itiii tele. 



