ABSTRACT
From a surgical standpoint, the liver and gallbladder of the pig have relatively few differences from those of humans (Figures 5.1 and 5.2). The bile duct of the pig enters the duodenum 2-5 cm from the pylorus, separately from the pancreatic duct. The sizes of the bile duct and sphincter of Oddi are variable depending upon the size and breed of the pig (Table 5.1). The diameter of the bile duct seems to vary substantially even in the same size and breed of pig; however, it readily dilates when catheterized. Normal pressure in the common bile duct is usually less than 10 cm H2O.
