1 — Hepatopancreatic ampulla; Biliaropancreatic ampulla; Sphincter of ampulla; 2 — Gallbladder, serosa; serous coat; 3 — Fundus of gallbladder; 4 — Body of gallbladder; 5 — Neck of gallbladder; 6 — Common hepatic duct; 7 — Cystic duct; 8 — Bile duct; 9 — Pancreatic duct
