clinical syndromes of cirrhosis Flashcards
what does the portal system consist of
-superior mesenteric +splenic vein + gastric + part from inferior mesenteric
where does the portal vein carry outflow to ?
spleen oesophagus stomach pancreas small and large intestine
describe hepatic blood flow
get oxygenated blood from hepatic artery combined with nutrient rich deoxygenated blood from hepatic portal vein and it travels to
- liver sinusoids
- central vein
- hepatic vein
- inferior vena cava
- right atrium of heart
what are portocaval anastomosis sites of varices
a specific type of anastomosis that occurs between the veins of portal circulation and those of the systemic circulation
where are the 4 collateral pathways (for anastomosis)
> oesophagus and gastric venous plexus
umbilical vein from the left portal vein to the epigastric venous system
retroperitoneal collateral vessels
the hemorrhoidal venous plexus
what can happen to these varices in caesura of portal hypertension
these anastomoses can become engorged, dilated or varicosed and subsequently rupture