Portal Vein & Portosystemic Anastomoses
HardHigh-yieldAnatomy · Abdomen & Pelvis
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The portal venous system carries nutrient-rich, deoxygenated blood from the abdominal gut (lower oesophagus to upper anal canal), spleen, pancreas, and gallbladder to the liver for first-pass processing. When this circuit obstructs, blood reroutes through portosystemic anastomoses — the anatomical basis of oesophageal varices, caput medusae, and haemorrhoids. This is among the most repeatedly tested anatomy-hepatolog…
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