hepatic and portal circulation Flashcards
what does the azygos vein do
It is responsible for draining the thoracic wall and upper lumbar region via the lumbar veins and posterior intercostal veins 1. It also provides important collateral circulation between the superior and inferior venae cavae should they become obstructed 2.
the liver is divided into how many segments
8
on right side
starting at bottom middle
lobe 5,6,7,8
on left side starting far end
2,3,4b,4a
1 right on far right
what vein separates the two lobes
middle hepatic vein
what vein separates the right lobe so 5and8 one side and 6and7 the other
right hepatic vein
right antihero section and right posterior section
what vein separates the left lobe
left hepatic vein so 2and3 and then 4s
left lateral and left medial sections
what lobe is found posterior in the portal plane
1
what ligaments divides the lobes
falciform ligament
what lobe is the quadrate lobe
4b
3 branches of the celiac trunk
common hepatic ( right ) left gastric and splenic artery
gastroduodenal artery comes off what
common hepatic deu to stomach supply blood
GDA becomes what artery to supply stomach
right gastro epoploic
RGE comes from artery
splenic artery
in splenic flexure SMA and LMA artery joins called what
arc of ripon
middle colic and left colic do this to
why do babies have big heads
as all their blood is diverted there
what is portal hypertension
Portal hypertension is elevated pressure in your portal venous system. The portal vein is a major vein that leads to the liver. The most common cause of portal hypertension is cirrhosis (scarring) of the liver.
three other ways around the liver in cirrhosis and portal hypertension
lead to varies of oespahgus ( use systemic azygous veins instead of left gastric veins and anorectal varices ( now use systemic middle and inferior rectal veins intead of sup rectal veins)
umbilical - systemic sup epigastric veins used instead of paraumbilical veins
bowel cancer metastasis to what first
liver
what is TIPS procedure
guidwirie stent in via neck to hepatic vein through liver to portal vein to open it
liver cirrhosis
Cirrhosis is scarring (fibrosis) of the liver caused by long-term liver damage. The scar tissue prevents the liver working properly. Cirrhosis is sometimes called end-stage liver disease because it happens after other stages of damage from conditions that affect the liver, such as hepatitis.
caused by alcoholic, hepatitis and fatty liver associated with obesity
Fatigue. Easily bleeding or bruising. Loss of appetite. Nausea. Swelling in your legs, feet or ankles (edema) Weight loss. Itchy skin. Yellow discoloration in the skin and eyes (jaundice) ,Stages of Liver Disease. ... Stage 1: Inflammation. ... Stage 2: Fibrosis. ... Stage 3: Cirrhosis. ... Stage 4: Liver Failure.
colon cancer travels to where
prostate in men
breast in women
the right lobe of the liver includes what segments
5,6,7,8
portal vein receives blood from
splenic vein, superior mesenteric vein, inferior mesenteric vein, pancreatic vein
in fetal circulation the ductus venosus connects
The ductus venosus connects the intra-abdominal portion of the umbilical vein with the inferior vena cava at its inlet to the right atrium
bypassing the liver
in anorectal varies the blood will use
the middle and inferior rectal veins instead of sup rectal veins
in eospahgeal varies the blood will use
azygous vein instead of left gastric vein ( portal vein trib)
in paraumbilical varicose ( caput medusa) the blood will use
sup epigastric veins instead of paraumbilcial veins
