The liver's blood flow?
I dont get the blood flow. It has 1 vena cava, 1 hepatic artery and the bile duct. Thats it? Someone told me it has two vein..
Also, why is it that in portal hypertension, the blood flow is resistant only in the vein. What about arterial hypertension?
Lastly, why does the pancreas have a bile duct? It doesn't secrete bile
Answers:
The liver have one artery..the hepatic artery and the blood return is via the hepatic veins. Bile is secreted into the bile ducts which drain into the common bile dict which is joined by the cystic duct (from the gallbladder) and the pancreatic ducts previously draining into the duodenum where it is used to emulsify fats in foods. Blood returning from the bowels, stomach and spleen drain into the portal capillary which has multiple branches in the liver. Ordinarily there is no communication between the hepatic vein and the portal venous system. In portal hypertension the flow in the portal veins is markedly diminished and the returning blood from the gut gets shunted into the vena cava via sundry connections which will open up. Portal hypertension is relieved with surgical (porto-caval) or invasive radiological (TIPS) shunts which create connections between the venous and portal systems.
Arterial hypertension does not effect the liver particularly.
exophalmos,
cool moniker by the way :D
im not sure about the liver blood flow part, we didnt rob it in anatomy yet... anyways, the pancrease secretes digestive enzymes into the duodenum, the pancrease have a PANCREATIC duct not a bile duct...bile is secrected via the bile duct from the liver
hope that helps
:D
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Also, why is it that in portal hypertension, the blood flow is resistant only in the vein. What about arterial hypertension?
Lastly, why does the pancreas have a bile duct? It doesn't secrete bile
Answers:
The liver have one artery..the hepatic artery and the blood return is via the hepatic veins. Bile is secreted into the bile ducts which drain into the common bile dict which is joined by the cystic duct (from the gallbladder) and the pancreatic ducts previously draining into the duodenum where it is used to emulsify fats in foods. Blood returning from the bowels, stomach and spleen drain into the portal capillary which has multiple branches in the liver. Ordinarily there is no communication between the hepatic vein and the portal venous system. In portal hypertension the flow in the portal veins is markedly diminished and the returning blood from the gut gets shunted into the vena cava via sundry connections which will open up. Portal hypertension is relieved with surgical (porto-caval) or invasive radiological (TIPS) shunts which create connections between the venous and portal systems.
Arterial hypertension does not effect the liver particularly.
exophalmos,
cool moniker by the way :D
im not sure about the liver blood flow part, we didnt rob it in anatomy yet... anyways, the pancrease secretes digestive enzymes into the duodenum, the pancrease have a PANCREATIC duct not a bile duct...bile is secrected via the bile duct from the liver
hope that helps
:D
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