GI Viscera I Flashcards
Name the unpaired branches of the abdominal aorta
Celiac trunk, Superior Mesenteric Artery, Inferior Mesenteric Artery, Middle Sacral artery (behind bifurcation of abd aorta)
Name the paired branches of the abdominal aorta
Inferior phrenic, Renal, Gonadal (testicular/ovarian), Common Iliac, Lumbar
List the arterial branches to the stomach
Left gastric, short gastric, left gastro-omental, right gastric, gastroduodenal, right gastro-omental
Where do the left and right gastric veins drain to?
The portal vein
The portal vein arises from what two veins?
The splenic vein and superior mesenteric vein
Where do the short gastric veins and left gastro-omental vein drain to?
The splenic vein
Where does the right gastro-omental vein drain to?
The superior mesenteric vein
Where does the prepyloric vein drain to?
The right gastric vein
Lymphatic drainage of abdominal viscera
Gastric and gastro-omental nodes to celiac nodes
Parasympathetic innervation to GI Viscera
Anterior/posterior vagal trunks
Sympathetic innervation to the stomach
Greater thoracic splanchnic nerve (T6-T9)
What is the advantage conferred by the retroperitoneal positioning of the distal three parts of the duodenum?
It secures the area around the common bile duct and major hepatic duct (enter 2nd part), which helps prevent these vessels from becoming kinked or twisted
Arterial supply to the duodenum
Celiac and SMA, Gastroduodenal, Anterior/posterior superior Pancreaticoduodenal arteries, Anterior/posterior inferior pancreaticoduodenal arteries (from SMA)
Where do veins draining the duodenum drain to and generally how do they get there?
The portal vein, either directly or indirectly via the splenic and SMV
Lymphatic drainage of the anterior vessels of the duodenum
Pancreaticoduodenal nodes and pyloric nodes
