Anatomy of the pancreas. The pancreas is an elongated, tapered organ located across the back of the belly, behind the stomach. The right side of the organ—called the head—is the widest part of the ...

ANATOMY OF THE PORTAL VENOUS SYSTEM. The portal venous system consists of vasculature that drains the digestive tract, spleen, pancreas, and biliary system. The portal vein lies in a transverse ...