GI Tract Additional Anatomy

Vocabulary flashcards reviewing retroperitoneal and intraperitoneal GI organs, liver lobes, peritoneal ligaments, and hepatic blood supply.

Retroperitoneal

Located behind the peritoneum and fixed to the abdominal wall.

Retroperitoneal organ mobility

Able to move, but without a free-range of motion.

Intraperitoneal

Covered by the peritoneum and suspended by the mesentery.

Intraperitoneal organ mobility

Able to move freely, which often aids their function.

Kidney (peritoneal status)

Retroperitoneal

Pancreas (peritoneal status)

Retroperitoneal

Stomach (peritoneal status)

Intraperitoneal

Duodenum (peritoneal status)

Retroperitoneal

Liver (peritoneal status)

Intraperitoneal

Small intestine (peritoneal status)

Intraperitoneal

Ascending colon (peritoneal status)

Retroperitoneal

Transverse colon (peritoneal status)

Intraperitoneal

Descending colon (peritoneal status)

Retroperitoneal

Rectum (peritoneal status)

Retroperitoneal

Oesophagus (peritoneal status)

Retroperitoneal

Four lobes of the liver

Right, left, caudate, and quadrate lobes.

Falciform ligament

The ligament that attaches the liver to the abdominal wall.

Portal triad

The three structures comprising the hepatic portal vein, hepatic artery proper, and bile duct.

Blood supply to the liver

Derived from the hepatic artery ($\text{O}_2$ rich) and the portal vein (nutrient rich).