Lecture Notes - Duodenum, Pancreas, Liver, & Gallbladder

The streaming video of the 2004-5 lab overview is available on the web (password protected).
The computer presentation used by Dr. Hildebrandt in lecture is available on the web (password protected). You can also download the PowerPoint presentation to print or review.

  1. Development
    • foregut structures supplied by celiac trunk
    • pancreas from dorsal (and ventral) mesentery
    • liver and gallbladder from ventral mesentery
  2. Duodenum
    • first part of small intestine
    • fixed, mostly retroperitoneal C-loop, fusion fascia
    • four parts:
      • first (L1): no circular folds, peritoneal
      • second (L1,2,3) descending: major + minor duodenal papillae
      • third (L3) transverse: crossed by SMA and SMV
      • fourth (L3,2) ascending: duodenojejunal flexure, suspensory muscle of duodenum (lig. of Treitz)
  3. Pancreas
    • retroperitoneal
    • head with uncinate process, neck, body + tail
    • main (+ accessory) pancreatic ducts, proximity to common bile duct
  4. Gallbladder and Biliary System
    • neck, body and fundus of gallbladder
    • right, left and common hepatic ducts, cystic duct, common bile duct
  5. Arteries and Veins of Duodenum and Pancreas
    • from gastroduodenal a.:
      • supra- and retroduodenal aa.
      • ant.+post. superior pancreaticoduodenal aa.
    • from SMA: ant.+post. inferior pancreticoduodenal aa.
    • from splenic a.: dorsal -, great - and caudal pancreatic aa.
    • anastomoses, ant. + post. arcades, vasa recta to duodenum
    • venous drainage to portal vein directly or via splenic vein or SMV
  6. Liver
    • omental (epiploic) foramen, hepatoduodenal and hepatogastric ligament
    • porta hepatis: triad: common hepatic duct, portal vein, hepatic artery (var)
    • falciform lig. with lig. teres, lig. venosum, coronary lig. with right and left triangular ligs., bare area
    • anatomical lobes: right, left, caudate and quadrate, different from surgical (or functional) lobes
    • hepatic veins
    • portocaval anastomoses