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21 Cards in this Set
- Front
- Back
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venous blood from unpaired abdominal viscera |
GIT Spleen Pancreas Gall bladder |
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these viscera are supplied by |
3 unpaired abdominal arteries celiac trunk superior & inferior mesenteric artery |
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the blood reaches the liver via |
the portal vein and then runs through the hepatic veins to the inferior vena cava |
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this ensures |
the nutrients absorbed from the intestine, reach the main metabolic organ by the shortest route |
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it's formed by 3 veins |
1. Splenic vein 2. Inferior mesenteric vein 3. Superior mesenteric vein |
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1. Splenic vein |
runs along the upper margin of the pancreas (same as splenic artery) inf mesenteric vein joins it behind the body of the pancreas behind the head of the pancreas it joins with the superior mesenteric vein to form the portal vein |
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2. Inferior mesenteric vein |
contains blood from descending and sigmoid colon & the upper rectum (superior rectal vein) runs with the inf mesenteric artery |
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3. Superior mesenteric vein |
carries blood from the small intestine, cecum & ascending & transverse colon accompanied by the superior mesenteric artery |
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these veins all end in the trunk of the portal vein |
right and left gastric veins (from lesser curvature of the stomach) cystic vein (from gallbladder) prepyloric vein (from ant surface of pylorus) |
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porto-caval & cavo-caval anastomoses |
vena portae drains blood from unpaired organs of abdomen (intestines, liver, stomach, spleen, pancreas, gall bladder) to liver... passes 2 ciliary beds |
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porto-caval anastomoses |
drainage area of portal vein borders on that of inf & sup vena cava at following sites |
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sites |
esophagus rectum abdominal wall |
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esophagus |
blood from the esophageal veins flow through the azygos and hemiazygos veins to the sup vena cava |
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rectum
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blood from the rectal veins to the internal iliac and then inferior vena cava |
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abdominal wall |
connected with the superior vena cava and the inferior vena cava |
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porto-caval anastomoses may also occur between |
mesenteric veins & retroperitoneal veins |
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cavo-caval anastomoses |
connections between inferior vena cava and superior vena cava along the posterior wall of the body |
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3 cavo-caval anastomoses |
azygos & hemizygous vein superior & inferior epigastric veins superficial epigastric vein |
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azygos & hemizygous vein |
are cavo-caval anastomoses (ascending lumbar veins also connect to these systems) |
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superior & inferior epigastric veins |
- |
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superficial epigastric vein |
drains to the great saphenous vein, and the thoracoepigastric vein (superior vena cava) - these are the subcutaneous anastomoses |
