Viscera

Stomach

vessels

left gastric artery: branches off celiac trunk, runs along the lesser curvature; also has esophageal branch

right gastric artery: branch of hepatic artery proper; runs along lesser curvature; anastamoses with the left gastric artery

left gastroepiploic artery: branch of splenic artery; runs along greater curvature; anastamoses with right epiploic

right gastroepiploic artery: branch of gastroduodenal; runs along greater curvature

short gastric arteries: short branches of the splenic artery; supply left side of stomach

veins parallel the arteries, but their course is highly variable

cardia, fundus/body, antrum, pylorus

Spleen

vessels

splenic artery: branch of celiac trunk

splenic vein: joins with the inferior mesenteric behind the pancreas and then joins the superior mesenteric to form the portal vein

Major Duodenal Papilla: located 8 - 10 cm from the pylorus; raised structure that houses the ampulla of Vater

Ampulla of Vater (hepatopancreatic ampulla): short duct that is combination of pancreatic duct and common bile duct controlled by the sphincter of Oddi

Main Pancreatic Duct: begins at the tail of the pancreas and runs to the ampulla of Vater

accessory pancreatic duct may or may not exist (superior to the main duct)

Liver

Lobes: left; right; caudate; quadrate (divided by an ‘H’ shaped fissure)

Fissures

Right Sagittal Fossa: imaginary line runs through gall bladder fossa and fossa for the IVC

Left Sagittal Fissure: contains the ligamentum venosum and the round ligament (ligamentum teres)

Transverse Fissure (porta hepatus): contains portal vein, hepatic artery proper, hepatic ducts

Round Ligament (ligamentum teres): forms free edge of falciform ligament; obliterated umbilical vein

Ligamentum Venosum: remnant of the ductus venosis

Bile Passages: hepatic ducts (right and left) in liver converge to form the common hepatic duct; cystic duct of gall bladder joins to form the common bile duct; pancreatic duct joins at the ampulla of Vater at the duodenum

Gall Bladder

lies in gallbladder fossa along right edge of the quadrate lobe; connects to common bile duct via cystic duct

Duodenum

four parts (1^st: superior; 2^nd: descending; 3^rd: horizontal; 4^th: ascending)

has plicae circulares

Jejunum

proximal; upper left quadrant; thicker walls; long vasa recti; simple arcade pattern; no encroaching fat; plicae circulares present

Ileum

distal; lower right quadrant; thinner walls; short vasa recti; complicated arcade pattern; encroaching fat; no plicae circulares

Colon

contains haustra (sacculations) formed by teniae coli; plicae semilunares

Pancreas

Veins

Portal Veins

Inferior Vena Cava

Hepatic Veins

Arteries

Celiac Trunk

Splenic Artery

Left Gastric Artery

Hepatic Artery

Root of the Mesentery

Ligament of Treitz (Suspensory Muscle of the Duodenum): fibromuscular band; suspends duodenaljejunal junction to the right crus of the diaphragm