Abdomen Flashcards
(37 cards)
Four major collateral pathways for blood flow around portal vein obstruction
Paraumbilical veins -> superficial epigastric
Left gastric vein -> esophageal veins
Superior rectal veins -> middle and inferior rectal veins
Left and right colic veins -> retroperitoneal veins
Features of portal venous system that allow for collateral channels?
VALVELESS!
many potential anastomoses because many different tributaries
Normal path for return of portal system blood to the caval system
Portal vein -> Liver -> Hepatic veins -> IVC
List the retroperiotneal structures
- Kidneys
- Ureters
- Adrenals
- Pancreas
- Duodenum (2nd, 3rd and 4th parts)
List the partially peritonealized structures
ascending colon
descending colon
liver!! because of bare area
List the completely peritonealized structures
Stomach Duodenum, first part Jejunum Ileum Transverse colon Sigmoid colon Spleen Appendix Gallbladder(according to google)
Branches of celiac trunk
left gastric artery
common hepatic artery
splenic artery
Branches of superior mesenteric artery
right colic artery middle colic artery ileocolic artery ileal and jejunal arteries anterior and posterior INFERIOR pancreatoduodenal arteries
Branches of renal arteries
each has an anterior and posterior branch
Branches of inferior MESENTERIC artery
left colic artery
sigmoidal arteries
superior rectal artery
Branches of common hepatic artery
- gastroduodenal artery
- continues as proper hepatic artery after giving off the gastroduodenal artery
What supplies the descending colon with blood?
Left colic artery, which is a branch of the INFERIOR MESENTERIC artery
What are the branches of the proper hepatic artery?
right gastric (think: easy name like hepatic) right and left hepatic arteries
What are the branches of the gastroduodenal artery?
right epiploic artery (think: hard name like gastroduodenal)
anterior and posterior superior pancreatoduodenal arteries (also hard names)
What artery supplies foregut?
Celiac trunk
What artery supplies midgut?
Superior mesenteric arteries
What artery supplies hindgut?
Inferior MESENTERIC arteries
What does the right hepatic artery give?
cystic artery; recall that the right hepatic artery is a branch of the proper hepatic artery, which is the continuation of the common hepatic artery after it gives off the gastroduodenal artery
Branches of the splenic artery
short gastric left gastroepiploic pancreatic arteries (dorsal, great and tail)
where does the aorta bifurcate
L4
approx what vertebral level are the right and left renal veins located
L1
what artery supplies the ascending colon?
the right colic artery which is a branch of the superior mesenteric artery
what artery supplies the head of the pancreas?
the anterior and posterior superior pancreaticoduodenal arteries, which are branches of the gastroduodenal artery which is a branch of the common hepatic which is a branch of the celiac trunk. note: A&P superior pancreaticoduodenal arteries also supply the upper portion of the duodenum
what artery supplies the lower duodenum?
anterior and posterior INFERIOR pancreaticoduodenal arteries which are branches of the SUPERIOR mesenteric artery
