1. Demonstrate the layout of the large intestine in-situ. 2. Understand the main features of the anal canal, including blood supply and innervation. 3. Demonstrate the anatomy of the liver and gall bladder. 4. Identify the superior and inferior mesenteric arteries. 5. Identify the branches of the tributaries of the hepatic portal vein and understand the main portocaval anastomoses. 6. Understand the formation and course of the common bile duct. 7. Understand the potential impact of gallstones upon the gall bladder, bile ducts, liver and pancreas.